---

Recommended GCAL configurations and Exp. Times for GMOS calibrations:
Quartz Halogen flats and CuAr arcs

---

Note the following:

• The configurations and exposure times in this table only apply to the original EEV detectors in both GMOS-N and GMOS-S.
• Values for the upgraded GMOS-N e2v DD CCDs are not yet available.
• Values for the upgraded GMOS-N Hamamatsu CCDs are not yet available.
• The choice of filter within GMOS is not considered except for IFU-2 configurations
• The Readout is Slow and the Gain is Low and the three best amps were used for GMOS-N EEV GCALflats
• The GMOS-N and GMOS-S detector controllers only support integer exposure times
• The B600 is not yet complete for 2.0 and 5.0 arcsec slits (use the values for R400 or consult your Gemini contact scientist)
• The counts and example spectra for GMOS-N are from the old B600 grating; the counts delivered by the new B600 grating are 20-30% higher, updated spectral plots will be added in the near future
• This table is still a work in progress, more GMOS-S example spectra will be added
• The GMOS gratings (with the exception of the R150) have significant scattered light. Examples of scattered light are shown for the B600, R600 and R831 gratings.
• The old calibration table is still available

---

GCALflats

All GCALflats are taken with

• GCALlamp=Quartz-Halogen
• GCALdiffuser=VISIBLE

• Mirror (for mask imaging)
• R150 Longslit / MOS and IFU
• R400 Longslit / MOS and IFU
• B600 Longslit / MOS and IFU
• R600 Longslit / MOS and IFU
• R831 Longslit / MOS and IFU
• B1200 Longslit / MOS and IFU

---

GCALflat configurations for Mirror (Mask Imaging)

Slit / IFU	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)
Any	1x1	ND3.0	N/A	1

---

GCALflat configurations for R150 Grating (Longslit or MOS)
Slit Width (arcsec): 0.25 0.50 0.75 1.00 1.50 2.00 5.00
* Alternative Configuration (More counts Blueward of 650nm at significantly longer exposure times)

Slit Width	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
0.25arcsec	1x1	GMOS	700	12	34,000
	2x1,1x2	GMOS	700	6	34,000
	2x2,4x1,1x4	GMOS	700	3	34,000
	2x4,4x2	GMOS	700	1	22,000
	4x4	ND2.0	700	2	32,000
0.50arcsec	1x1	GMOS	700	6	34,000
	2x1,1x2	GMOS	700	3	35,000	700nm
	2x2,4x1,1x4	GMOS	700	1	22,000
	2x4,4x2	ND2.0	700	2	32,000
	4x4	ND2.0	700	1	32,000
0.75arcsec	1x1	GMOS	700	4	34,000	700nm
	2x1,1x2	GMOS	700	2	34,000	700nm
	2x2,1x4,4x1	GMOS	700	1	34,000
	2x4,4x2	ND2.0	700	1	23,000
	4x4	ND3.0	700	1	39,000	700nm
		ND4-5*	700	200	30,000	700nm
1.0arcsec	1x1	GMOS	700	3	35,000	700nm
	2x1,1x2	GMOS	700	1	23,000	700nm
	2x2,4x1,1x4	ND2.0	700	2	32,000	700nm
	2x4,4x2	ND2.0	700	1	32,000
	4x4	ND4.0	700	2	29,000	700nm
		ND4-5*	700	150	30,000	700nm
1.5arcsec	1x1	GMOS	700	2	34,000	700nm
	2x1,1x2	GMOS	700	1	34,000
	2x2,4x1,1x4	ND2.0	700	1	23,000	700nm
	2x4,4x2	ND3.0	700	1	38,000	700nm
		ND4-5*	700	200	29,000	700nm
	4x4	ND4.0	700	1	21,000	700nm
		ND4-5*	700	100	29,000	700nm
2.0arcsec	1x1	GMOS	700	1	23,000	700nm
	2x1,1x2	ND2.0	700	2	31,000	700nm
	2x2,4x1,1x4	ND2.0	700	1	32,000
	2x4,4x2	ND4.0	700	2	29,000	700nm
		ND4-5*	700	150	28,000	700nm
	4x4	ND4.0	700	1	29,000	700nm
		ND4-5*	700	75	28,000	700nm
5.0arcsec	1x1	ND2.0	700	2	39,000	700nm
	2x1,1x2	ND2.0	700	1	39,000	700nm
	2x2,4x1,1x4	ND4.0	700	2	36,000	700nm
		ND4-5*	700	150	34,000	700nm
	2x4,4x2	ND4.0	700	1	36,000	700nm
		ND4-5*	700	75	34,000	700nm
	4x4	ND4-5	700	38	35,000	700nm

---

GCALflat configurations for R150 Grating (IFU)
IFU configuration: IFU-R IFU-2
Note: It is not recommended to bin IFU spectra in the spatial direction
*Gives coverage in both slits from ~ 490-950nm, zero-order light contaminates the right-hand (blue) side of the detector

IFU	GMOS Filter	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
IFU-R	none	1x1	GMOS	700	44	38,000	not available
	none	2x1	GMOS	700	22	38,000
	none	4x1	GMOS	700	11	38,000
IFU-2	GG455	1x1	GMOS	725*	48	38,000	725nm
	GG455	2x1	GMOS	725*	24	38,000
	GG455	4x1	GMOS	725*	12	38,000

---

GCALflat configurations for R400 Grating (Longslit or MOS)
Slit Width (arcsec): 0.25 0.50 0.75 1.00 1.50 2.00 5.00

Slit Width	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
0.25arcsec	1x1	GMOS	500	40	45,000 (7800 cts @ 500 nm)
		GMOS	800	24	30,000
	2x1,1x2	GMOS	500	20	45,000 (7800 cts @ 500 nm)
		GMOS	800	12	30,000
	2x2,4x1,1x4	GMOS	500	10	45,000 (7800 cts @ 500 nm)
		GMOS	800	6	30,000
	2x4,4x2	GMOS	500	5	45,000 (7800 cts @ 500 nm)
		GMOS	800	3	30,000
	4x4	GMOS	500	2	36,000 (6300 cts @ 500 nm)
		GMOS	800	2	39,000
0.5arcsec	1x1	GMOS	500	20	45,000 (7800 cts @ 500 nm)
		GMOS	800	12	30,000
	2x1,1x2	GMOS	500	10	45,000 (7800 cts @ 500 nm)
		GMOS	800	6	30,000
	2x2,4x1,1x4	GMOS	500	5	45,000 (7800 cts @ 500 nm)
		GMOS	800	3	30,000
	2x4,4x2	GMOS	500	2	36,000 (6300 cts @ 500 nm)
		GMOS	800	2	39,000
	4x4	GMOS	500	1	36,000 (6300 cts @ 500 nm)
		GMOS	800	1	39,000
0.75arcsec	1x1	GMOS	500	13	44,000 (7600 cts @ 500 nm)
		GMOS	800	8	30,000
	2x1,1x2	GMOS	500	6	41,000 (7000 cts @ 500 nm)
		GMOS	800	4	30,000
	2x2,1x4,4x1	GMOS	500	3	41,000 (7000 cts @ 500 nm)
		GMOS	800	2	30,000
	2x4,4x2	GMOS	500	1	27,000 (4200 cts @ 500nm)
		GMOS	800	1	30,000
	4x4	ND2.0	500	2	35,000 (2400 cts @ 500 nm)
		ND2.0	800	2	40,000
1.0arcsec	1x1	GMOS	500	10	45,000 (7800 cts @ 500 nm)	500nm
		GMOS	800	6	30,000	800nm
	2x1,1x2	GMOS	500	5	45,000 (7800 cts @ 500 nm)
		GMOS	800	3	30,000
	2x2,4x1,1x4	GMOS	500	2	36,000 (6300 cts @ 500 nm)	500nm
		GMOS	800	2	39,000	800nm
	2x4,4x2	GMOS	500	1	36,000 (6300 cts @ 500 nm)
		GMOS	800	1	39,000
	4x4	ND2.0	500	2	45,000 (3200 cts @ 500 nm)	500nm
		ND2.0	800	1	27,000	800nm
1.5arcsec	1x1	GMOS	500	6	40,000 (7000 cts @ 500nm)	500nm
		GMOS	800	4	30,000
	2x1,1x2	GMOS	500	3	40,000 (7000 cts @ 500nm)
		GMOS	800	2	30,000
	2x2,4x1,1x4	GMOS	500	1	27,000 (4200 cts @ 500nm)	500nm
		GMOS	800	1	30,000
	2x4,4x2	ND2.0	500	2	35,000 (2400 cts @ 500 nm)	500nm
		ND2.0	800	2	40,000	800nm
	4x4	ND2.0	500	1	35,000 (2400 cts @ 500 nm)	500nm
		ND2.0	800	1	40,000
2.0arcsec	1x1	GMOS	500	5	45,000 (7800 cts @ 500 nm)
		GMOS	800	3	30,000
	2x1,1x2	GMOS	500	2	36,000 (6300 cts @ 500 nm)
		GMOS	800	2	39,000	800nm
	2x2,4x1,1x4	GMOS	500	1	36,000 (6300 cts @ 500 nm)
		GMOS	800	1	39,000
	2x4,4x2	ND2.0	500	2	45,000 (3200 cts @ 500 nm)
		ND2.0	800	1	27,000
	4x4	ND2.0	500	1	47,000 (3300 cts @ 500 nm)	500nm
		ND4.0	800	2	27,000	800nm
5.0arcsec	1x1	GMOS	500	2	44,000 (7700 cts @ 500 nm)	500nm
		GMOS	800	1	22,000	800nm
	2x1,1x2	GMOS	500	1	44,000 (7700 cts @ 500 nm)
		ND2.0	800	2	32,000
	2x2,4x1,1x4	ND2.0	500	1	29,000 (2000 cts @ 500 nm)	500nm
		ND2.0	800	1	32,000	800nm
	2x4,4x2	ND3.0	500	2	55,000 (5200 cts @ 500 nm)
		ND4.0	800	2	34,000	800nm
	4x4	ND3.0	500	1	55,000 (5200 cts @ 500 nm)	500nm
		ND4.0	800	1	34,000

---

GCALflat configurations for R400 Grating (IFU)
IFU configuration: IFU-R IFU-2
Note: It is not recommended to bin IFU spectra in the spatial direction

IFU	GMOS Filter	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
IFU-R	none	1x1	GMOS	500	120	39,000 (4700 cts @ 500 nm)	500nm
	none		GMOS	800	90	35,000	800nm
	none	2x1	GMOS	500	60	39,000 (4700 cts @ 500 nm)
	none		GMOS	800	45	35,000
	none	4x1	GMOS	500	30	39,000 (4700 cts @ 500 nm)
	none		GMOS	800	23	35,000
IFU-2	g	1x1	GMOS	475	300	18,000 (5000 cts @ 475 nm)	475nm
	g	2x1	GMOS	475	150	18,000 (5000 cts @ 475 nm)
	g	4x1	GMOS	475	75	18,000 (5000 cts @ 475 nm)
	r	1x1	GMOS	630	140	44,000	630nm
	r	2x1	GMOS	630	70	44,000
	r	4x1	GMOS	630	35	44,000
	i	1x1	GMOS	780	120	35,000	780nm
	i	2x1	GMOS	780	60	35,000
	i	4x1	GMOS	780	30	35,000
	z	1x1	GMOS	935	120	32,000	935nm
	z	2x1	GMOS	935	60	32,000
	z	4x1	GMOS	935	30	32,000

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GCALflat configurations for B600 Grating (Longslit or MOS)
Slit Width (arcsec): 0.25 0.50 0.75 1.00 1.50 2.00 5.00
Example GMOS-N spectra from the old B600 grating, actual values delivered by the new B600 grating are 20-30% higher
GCALflat spectrum dominated by scattered light blueward of 400nm (shown in red)
GCAL ND filters give more scattered light than GMOS balance filter

Slit Width	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
0.25arcsec	1x1	GMOS	≤ 418	64	37,000 (9400 cts @ 400 nm)
		GMOS	419 - 500	48	35,000
		GMOS	600	48	33,000
		GMOS	700	48	31,000
		none	800	2	32,000
		GMOS	900	80	34,000
	2x1,1x2	GMOS	≤ 418	32	37,000 (9400 cts @ 400 nm)
		GMOS	419 - 500	24	35,000
		GMOS	600	24	33,000
		GMOS	700	24	31,000
		none	800	1	32,000
		GMOS	900	40	34,000
	2x2,4x1,1x4	GMOS	≤ 418	16	37,000 (9400 cts @ 400 nm)
		GMOS	419 - 500	12	35,000
		GMOS	600	12	33,000
		GMOS	700	12	31,000
		ND2.0	800	48	39,000
		GMOS	900	20	34,000
	2x4,4x2	GMOS	≤ 418	8	37,000 (9400 cts @ 400 nm)
		GMOS	419 - 500	6	35,000
		GMOS	600	6	33,000
		GMOS	700	6	31,000
		ND2.0	800	24	39,000
		GMOS	900	10	34,000
	4x4	GMOS	≤ 418	4	37,000 (9400 cts @ 400 nm)
		GMOS	419 - 500	3	35,000
		GMOS	600	3	33,000
		GMOS	700	3	31,000
		ND2.0	800	12	39,000
		GMOS	900	5	34,000
0.5arcsec	1x1	GMOS	≤ 418	32	37,000 (9400 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	419 - 500	24	35,000	500nm (scattered light in i+z filters)
		GMOS	600	24	33,000	600nm (scattered light in z filter)
		GMOS	700	24	31,000	not available
		none	800	1	32,000	800nm
		GMOS	900	40	34,000	not available
	2x1,1x2	GMOS	≤ 418	16	37,000 (9400 cts @ 400 nm)
		GMOS	419 - 500	12	35,000
		GMOS	600	12	33,000
		GMOS	700	12	31,000
		ND2.0	800	48	37,000	not available
		GMOS	900	20	34,000
	2x2,4x1,1x4	GMOS	≤ 418	8	37,000 (9400 cts @ 400 nm)
		GMOS	419 - 500	6	35,000
		GMOS	600	6	33,000
		GMOS	700	6	31,000
		ND2.0	800	24	37,000
		GMOS	900	10	34,000
	2x4,4x2	GMOS	≤ 418	4	37,000 (9400 cts @ 400 nm)
		GMOS	419 - 500	3	35,000
		GMOS	600	3	33,000
		GMOS	700	3	31,000
		ND2.0	800	12	37,000
		GMOS	900	5	34,000
	4x4	GMOS	≤ 418	2	37,000 (9400 cts @ 400 nm)
		GMOS	419 - 500	1	24,000 (2800 cts @ 400 nm)	not available
		GMOS	600	1	23,000	not available
		GMOS	700	1	21,000	not avilable
		ND2.0	800	6	37,000
		GMOS	900	2		not available
0.75arcsec	1x1	GMOS	≤ 418	24	41,000 (11,000 cts @ 400 nm)	400nm (scattered light in i+z filters)
		GMOS	419 - 500	16	34,000	500nm
		GMOS	600	16	33,000	600nm
		GMOS	700	16	31,000	700nm
		ND2.0	800	64	37,000	800nm
		GMOS	900	32	40,000	900nm
	2x1,1x2	GMOS	≤ 418	12	41,000 (11,000 cts @ 400 nm)
		GMOS	419 - 500	8	34,000
		GMOS	600	8	33,000
		GMOS	700	8	31,000
		ND2.0	800	32	37,000
		GMOS	900	16	40,000
	2x2,1x4,4x1	GMOS	≤ 418	6	41,000 (11,00 cts @ 400 nm)
		GMOS	419 - 500	4	34,000
		GMOS	600	4	33,000
		GMOS	700	4	31,000
		ND2.0	800	16	37,000
		GMOS	900	8	40,000
	2x4,4x2	GMOS	≤ 418	3	41,000 (11,000 cts @ 400 nm)
		GMOS	419 - 500	2	34,000
		GMOS	600	2	33,000
		GMOS	700	2	31,000
		ND2.0	800	8	37,000
		GMOS	900	4	40,000
	4x4	GMOS	≤ 418	1	27,000 (6800 cts @ 400 nm)	400nm (scattered light in i+z filters)
		GMOS	419 - 500	1	34,000
		GMOS	600	1	33,000
		GMOS	700	1	31,000
		ND2.0	800	4	37,000
		GMOS	900	2	40,000
1.0arcsec	1x1	GMOS	≤ 418	16	36,000 (9000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	419 - 500	12	34,000	500nm (scattered light in i+z filters)
		GMOS	600	12	33,000	600nm
		GMOS	700	12	31,000	700nm
		ND2.0	800	48	37,000	800nm
		GMOS	900	20	34,000	900nm (second order / scattered light in g+r filters)
	2x1,1x2	GMOS	≤ 418	8	36,000 (9000 cts @ 400 nm)
		GMOS	419 - 500	6	34,000
		GMOS	600	6	33,000
		GMOS	700	6	31,000
		ND2.0	800	24	37,000
		GMOS	900	10	34,000
	2x2,4x1,1x4	GMOS	≤ 418	4	36,000 (9000 cts @ 400 nm)
		GMOS	419 - 500	3	34,000
		GMOS	600	3	33,000
		GMOS	700	3	31,000
		ND2.0	800	12	37,000
		GMOS	900	5	34,000
	2x4,4x2	GMOS	≤ 418	2	36,000 (9000 cts @ 400 nm)
		GMOS	419 - 500	1	22,000	500nm (scattered light in i+z filters)
		GMOS	600	1	22,000	600nm
		GMOS	700	1	20,000	700nm
		ND2.0	800	6	37,000
		GMOS	900	3	40,000	900nm (second order / scattered light in g+r filters)
	4x4	GMOS	≤ 418	1	36,000 (9000 cts @ 400 nm)
		ND2.0	419 - 500	3	29,000 (7300 cts @ 500 nm)	500nm (scattered light in i+z filters)
		ND2.0	600	3	40,000	600nm (scattered light in z filter)
		ND2.0	700	3	40,000	700nm
		ND2.0	800	3	37,000
		GMOS	900	1	27,000	900nm (second order / scattered light in g+r filters)
1.5arcsec	1x1	GMOS	≤ 418	12	40,000 (10,000 cts @ 400 nm)	400nm (scattered light in i+z filters)
		GMOS	419 - 500	8	34,000	500nm
		GMOS	600	8	33,000	600nm
		GMOS	700	8	30,000	700nm
		ND2.0	800	32	36,000	800nm
		GMOS	900	16	40,000	900nm
	2x1,1x2	GMOS	400	6	40,000 (10,000 cts @ 400 nm)
		GMOS	500	4	34,000
		GMOS	600	4	33,000
		GMOS	700	4	30,000
		ND2.0	800	16	36,000
		GMOS	900	8	40,000
	2x2,4x1,1x4	GMOS	≤ 418	3	40,000 (10,000 cts @ 400 nm)
		GMOS	419 - 500	2	34,000
		GMOS	600	2	33,000
		GMOS	700	2	30,000
		ND2.0	800	8	36,000
		GMOS	900	4	40,000
	2x4,4x2	GMOS	≤ 418	1	26,000 (6600 cts @ 400 nm)	400nm (scattered light in i+z filters)
		GMOS	419 - 500	1	34,000
		GMOS	600	1	33,000
		GMOS	700	1	30,000
		ND2.0	800	4	36,000
		GMOS	900	2	40,000
	4x4	ND2.0	≤ 418	7	40,000 (24,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		ND2.0	419 - 500	3	42,000 (11,00 cts @ 500 nm)	500nm (scattered light in i+z filters)
		ND2.0	600	2	39,000	600nm (scattered light in z filter)
		ND2.0	700	2	38,000	700nm
		ND2.0	800	2	36,000
		GMOS	900	1	40,000
2.0arcsec	1x1	GMOS	≤ 418	8	36,000 (9000 cts @ 400 nm)	not available
		GMOS	419 - 500	6	34,000	not available
		GMOS	600	6	33,000	not available
		GMOS	700	6	31,000	not available
		ND2.0	800	24	37,000	not available
		GMOS	900	10	34,000	not available
	2x1,1x2	GMOS	≤ 418	4	36,000 (9000 cts @ 400 nm)
		GMOS	419 - 500	3	34,000
		GMOS	600	3	33,000
		GMOS	700	3	31,000
		ND2.0	800	12	37,000
		GMOS	900	5	34,000
	2x2,4x1,1x4	GMOS	≤ 418	2	36,000 (9000 cts @ 400 nm)
		GMOS	419 - 500	1	22,000	not available
		GMOS	600	1	22,000	not available
		GMOS	700	1	20,000	not available
		ND2.0	800	6	37,000
		GMOS	900	3	40,000	not available
	2x4,4x2	GMOS	≤ 418	1	36,000 (9000 cts @ 400 nm)
		ND2.0	419 - 500	3	29,000 (7300 cts @ 500 nm)	not available
		ND2.0	600	3	40,000	not available
		ND2.0	700	3	40,000	not available
		ND2.0	800	3	37,000
		GMOS	900	1	27,000
	4x4	ND2.0	≤ 418	4		not available
		ND2.0	419 - 500	1		not available
		ND2.0	600	1		not available
		ND2.0	700	1		not available
		ND2.0	800	1	24,000	800nm
		ND2.0	900	2		not available
5.0arcsec	1x1	GMOS	≤ 418	3		not available
		GMOS	419 - 500	3	42,000	500nm scattered light in i+z filters
		GMOS	600	3		not available
		GMOS	700	3		not available
		ND2.0	800	10		not available
		GMOS	900	5		not available
	2x1,1x2	GMOS	≤ 418	1		not available
		GMOS	419 - 500	1		not available
		GMOS	600	1		not available
		GMOS	700	1		not available
		ND2.0	800	5
		GMOS	900	2		not available
	2x2,4x1,1x4	ND2.0	≤ 418	4		not available
		ND2.0	419 - 500	3		not available
		ND2.0	600	2		not available
		ND2.0	700	2		not available
		ND2.0	800	2		not available
		GMOS	900	1
	2x4,4x2	ND2.0	≤ 418	2
		ND2.0	419 - 500	1		not available
		ND2.0	600	1
		ND2.0	700	1
		ND2.0	800	1
		ND2.0	900	2		not available
	4x4	ND2.0	≤ 418	1
		ND3.0	419 - 500	1		not available
		ND3.0	600	1		not available
		ND4.0	700	3		not available
		ND4.0	800	3	38,000	800nm
		ND2.0	900	1

---

GCALflat configurations for B600 Grating (IFU)
IFU configuration: IFU-R IFU-2
Note: It is not recommended to bin IFU spectra in the spatial direction
# GCALflat spectrum contaminated by scattered light blueward of 400nm

IFU	GMOS Filter	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
IFU-R	none	1x1	GMOS	≤ 418	220	34,000 (6300 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
	none		GMOS	419 - 500	160	35,000	500nm
	none		GMOS	600	180	34,000	600nm
	none		GMOS	700	180	34,000	700nm
	none		none	800	8	36,000	800nm
	none		none	900	8	34,000	900nm
	none	2x1	GMOS	≤ 418	100	34,000 (6300 cts @ 400 nm)
	none		GMOS	419 - 500	80	35,000
	none		GMOS	600	90	34,000
	none		GMOS	700	90	34,000
	none		none	800	4	36,000
	none		GMOS	900	150	37,000	900nm
	none	4x1	GMOS	≤ 418	50	34,000 (6300 cts @ 400 nm)
	none		GMOS	419 - 500	40	35,000
	none		GMOS	600	45	34,000
	none		GMOS	700	45	34,000
	none		none	800	2	36,000
	none		GMOS	900	75	37,000
IFU-2	g	1x1	GMOS	475	300		not available
	g	2x1	GMOS	475	150
	g	4x1	GMOS	475	75
	r	1x1	GMOS	630	180		not available
	r	2x1	GMOS	630	90
	r	4x1	GMOS	630	45
	i	1x1	none	780	8		not available
	i	2x1	none	780	4
	i	4x1	none	780	2
	z	1x1	none	935	12		not available
	z	2x1	none	935	6
	z	4x1	none	935	3

---

GCALflat configurations for R600 Grating (Longslit or MOS)
Slit Width (arcsec): 0.25 0.50 0.75 1.00 1.50 2.00 5.00
GCALflat spectrum dominated by scattered light blueward of 400nm (shown in red)
GCAL ND filters give more scattered light than GMOS balance filter

Slit Width	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
0.25arcsec	1x1	GMOS	≤ 415	160	42,000 (13,000 cts @ 400 nm)	not available
		GMOS	415 - 540	96	44,000	not available
		GMOS	540 - 795	64	43,000	not available
		none	800	2	40,000	not available
		none	900	2	37,000	not available
		none	1000	2	37,000	not available
	2x1,1x2	GMOS	≤ 415	80	42,000 (13,000 cts @ 400 nm)	not available
		GMOS	415 - 540	48	44,000	not available
		GMOS	540 - 795	32	43,000	not available
		none	800	1	40,000	not available
		none	900	1	37,000	not available
		none	1000	1	37,000	not available
	2x2,4x1,1x4	GMOS	≤ 415	40	42,000 (13,000 cts @ 400 nm)	not available
		GMOS	415 - 540	24	44,000	not available
		GMOS	540 - 795	16	43,000	not available
		ND2.0	795 - 890	32	37,000	not available
		ND2.0	900	48	48,000	not available
		ND2.0	1000	48	49,000	not available
	2x4,4x2	GMOS	≤ 415	20	42,000 (13,000 cts @ 400 nm)	not available
		GMOS	415 - 540	12	44,000	not available
		GMOS	540 - 795	8	43,000	not available
		ND2.0	795 - 890	16	37,000	not available
		ND2.0	900	24	48,000	not available
		ND2.0	1000	24	49,000	not available
	4x4	GMOS	≤ 415	10	42,000 (13,000 cts @ 400 nm)	not available
		GMOS	415 - 540	6	44,000	not available
		GMOS	540 - 795	4	43,000	not available
		ND2.0	795 - 890	8	37,000	not available
		ND2.0	900	12	48,000	not available
		ND2.0	1000	12	49,000	not available
0.5arcsec	1x1	GMOS	≤ 415	80	42,000 (13,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 540	48	44,000	500nm (scattered light in i+z filters)
		GMOS	540 - 795	32	43,000	600nm 700nm
		none	800	1	40,000	800nm
		none	900	1	37,000	900nm (second order / scattered light in g+r filters)
		none	1000	1	37,000	1µm (second order / scattered light in g+r filters)
	2x1,1x2	GMOS	≤ 415	40	42,000 (13,000 cts @ 400 nm)
		GMOS	415 - 540	24	44,000
		GMOS	540 - 795	16	43,000
		ND2.0	795 - 890	32	37,000	800nm
		ND2.0	900	48	48,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	48	49,000	1µm (second order / scattered light in g+r filters)
	2x2,4x1,1x4	GMOS	≤ 415	20	42,000 (13,000 cts @ 400 nm)
		GMOS	415 - 540	12	44,000
		GMOS	540 - 795	8	43,000
		ND2.0	795 - 890	16	37,000
		ND2.0	900	24	48,000
		ND2.0	1000	24	49,000
	2x4,4x2	GMOS	≤ 415	10	42,000 (13,000 cts @ 400 nm)
		GMOS	415 - 540	6	44,000
		GMOS	540 - 795	4	43,000
		ND2.0	795 - 890	8	37,000
		ND2.0	900	12	48,000
		ND2.0	1000	12	49,000
	4x4	GMOS	≤ 415	5	42,000 (13,000 cts @ 400 nm)
		GMOS	415 - 540	3	44,000
		GMOS	540 - 795	2	43,000
		ND2.0	795 - 890	4	37,000
		ND2.0	900	6	48,000
		ND2.0	1000	6	49,000
0.75arcsec	1x1	GMOS	≤ 415	64	49,000 (15,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 540	32	43,000	500nm (scattered light in i+z filters)
		GMOS	540 - 795	24	47,000	600nm 700nm
		ND2.0	795 - 890	48	41,000	800nm
		ND2.0	900	64	47,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	64	49,000	1µm (second order / scattered light in g+r filters)
	2x1,1x2	GMOS	≤ 415	32	49,000 (15,000 cts @ 400 nm)
		GMOS	415 - 540	16	43,000
		GMOS	540 - 795	12	47,000
		ND2.0	795 - 890	24	41,000
		ND2.0	900	32	47,000
		ND2.0	1000	32	49,000
	2x2,1x4,4x1	GMOS	≤ 415	16	49,000 (15,000 cts @ 400 nm)
		GMOS	415 - 540	8	43,000
		GMOS	540 - 795	6	47,000
		ND2.0	795 - 890	12	41,000
		ND2.0	900	16	47,000
		ND2.0	1000	16	49,000
	2x4,4x2	GMOS	≤ 415	8	49,000 (15,000 cts @ 400 nm)
		GMOS	415 - 540	4	43,000
		GMOS	540 - 795	3	47,000
		ND2.0	795 - 890	6	41,000
		ND2.0	900	8	47,000
		ND2.0	1000	8	49,000
	4x4	GMOS	≤ 415	4	49,000 (15,000 cts @ 400 nm)
		GMOS	415 - 540	2	43,000
		GMOS	540 - 795	1	31,000	600nm 700nm
		ND2.0	795 - 890	3	41,000
		ND2.0	900	4	47,000
		ND2.0	1000	4	49,000
1.0arcsec	1x1	GMOS	≤ 415	40	41,000 (12,500 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 540	24	43,000	500nm (scattered light in i+z filters)
		GMOS	540 - 795	16	42,000	600nm 700nm
		ND2.0	795 - 890	32	36,000	800nm
		ND2.0	900	48	47,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	48	49,000	1µm (second order / scattered light in g+r filters)
	2x1,1x2	GMOS	≤ 415	20	41,000 (12,500 cts @ 400 nm)
		GMOS	415 - 540	12	43,000
		GMOS	540 - 795	8	42,000
		ND2.0	795 - 890	16	36,000
		ND2.0	900	24	47,000
		ND2.0	1000	24	49,000
	2x2,4x1,1x4	GMOS	≤ 415	10	41,000 (12,500 cts @ 400 nm)
		GMOS	415 - 540	6	43,000
		GMOS	540 - 795	4	42,000
		ND2.0	795 - 890	8	36,000
		ND2.0	900	12	47,000
		ND2.0	1000	12	49,000
	2x4,4x2	GMOS	≤ 415	5	41,000 (12,500 cts @ 400 nm)
		GMOS	415 - 540	3	43,000
		GMOS	540 - 795	2	42,000
		ND2.0	795 - 890	4	36,000
		ND2.0	900	6	47,000
		ND2.0	1000	6	49,000
	4x4	GMOS	≤ 415	2	36,000 (10,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 540	1	28,000	500nm (scattered light in i+z filters)
		GMOS	540 - 795	1	42,000
		ND2.0	795 - 890	2	36,000
		ND2.0	900	3	47,000
		ND2.0	1000	3	49,000
1.5arcsec	1x1	GMOS	≤ 415	32	48,000 (15,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 540	16	43,000	500nm (scattered light in i+z filters)
		GMOS	540 - 795	12	47,000	600nm 700nm
		ND2.0	795 - 890	24	40,000	800nm
		ND2.0	900	32	47,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	32	48,000	1µm (second order / scattered light in g+r filters)
	2x1,1x2	GMOS	≤ 415	16	48,000 (15,000 cts @ 400 nm)
		GMOS	415 - 540	8	43,000
		GMOS	540 - 795	6	47,000
		ND2.0	795 - 890	12	40,000
		ND2.0	900	16	47,000
		ND2.0	1000	16	48,000
	2x2,4x1,1x4	GMOS	≤ 415	8	48,000 (15,000 cts @ 400 nm)
		GMOS	415 - 540	4	43,000
		GMOS	540 - 795	3	47,000
		ND2.0	795 - 890	6	40,000
		ND2.0	900	8	47,000
		ND2.0	1000	8	48,000
	2x4,4x2	GMOS	≤ 415	4	48,000 (15,000 cts @ 400 nm)
		GMOS	415 - 540	2	43,000
		GMOS	540 - 795	1	31,000	600nm 700nm
		ND2.0	795 - 890	3	40,000
		ND2.0	900	4	47,000
		ND2.0	1000	4	48,000
	4x4	GMOS	≤ 415	2	48,000 (15,000 cts @ 400 nm)
		GMOS	415 - 540	1	43,000 (
		ND2.0	540 - 730	2	48,000	600nm 700nm
		ND2.0	730 - 890	1	26,000	800nm
		ND2.0	900	2	47,000
		ND2.0	1000	2	48,000
2.0arcsec	1x1	GMOS	≤ 415	20	40,000 (12,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 540	12	43,000	500nm (scattered light in i+z filters)
		GMOS	540 - 795	8	41,000	600nm 700nm
		ND2.0	795 - 890	16	35,000	800nm
		ND2.0	900	24	46,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	24	48,000	1µm (second order / scattered light in g+r filters)
	2x1,1x2	GMOS	≤ 415	10	40,000 (12,000 cts @ 400 nm)
		GMOS	415 - 540	6	43,000
		GMOS	540 - 795	4	41,000
		ND2.0	795 - 890	8	35,000
		ND2.0	900	12	46,000
		ND2.0	1000	12	48,000
	2x2,4x1,1x4	GMOS	≤ 415	5	40,000 (12,000 cts @ 400 nm)
		GMOS	415 - 540	3	43,000
		GMOS	540 - 795	2	41,000
		ND2.0	795 - 890	4	35,000
		ND2.0	900	6	46,000
		ND2.0	1000	6	48,000
	2x4,4x2	GMOS	≤ 415	2	36,000 (10,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 540	1	29,000	500nm (scattered light in i+z filters)
		GMOS	540 - 795	1	41,000
		ND2.0	795 - 890	2	35,000
		ND2.0	900	3	46,000
		ND2.0	1000	3	48,000
	4x4	GMOS	≤ 415	1	32,000 (9600 cts @ 400 nm)
		ND2.0	415 - 525	2	35,000 (7400 cts @ 500 nm)	500nm (scattered light in i+z filters)
		ND2.0	600	1	32,000 (9000 cts @ 600 nm)	600nm
		ND2.0	700	1	32,000	700nm
		ND2.0	800	1	35,000
		ND2.0	900	1	30,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	1	32,000	1µm (second order / scattered light in g+r filters)
5.0arcsec	1x1	GMOS	≤ 415	8	40,000 (12,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 540	4	36,000	500nm (scattered light in i+z filters)
		GMOS	540 - 795	3	38,000	600nm 700nm
		ND2.0	800	8	43,000	800nm
		ND2.0	900	8	38,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	8	39,000	1µm (second order / scattered light in g+r filters)
	2x1,1x2	GMOS	≤ 415	4	40,000 (12,000 cts @ 400 nm)
		GMOS	415 - 540	2	36,000
		GMOS	540 - 795	1	25,000	600nm 700nm
		ND2.0	800	4	43,000
		ND2.0	900	4	38,000
		ND2.0	1000	4	39,000
	2x2,4x1,1x4	GMOS	≤ 415	2	40,000 (12,000 cts @ 400 nm)
		GMOS	415 - 540	1	36,000
		ND2.0	600	2	37,000 (10,000 cts @ 600 nm)	600nm
		ND2.0	700	2	40,000	700nm
		ND2.0	800	2	43,000
		ND2.0	900	2	38,000
		ND2.0	1000	2	39,000
	2x4,4x2	GMOS	≤ 415	1	40,000 (12,000 cts @ 400 nm)
		ND2.0	415 - 525	2	39,000 (9000 cts @ 500 nm)	500nm (scattered light in i+z filters)
		ND2.0	600	1	37,000 (10,000 cts @ 600 nm)
		ND2.0	700	1	40,000
		ND2.0	800	1	43,000
		ND2.0	900	1	38,000
		ND2.0	1000	1	39,000
	4x4	ND2.0	≤ 415	4	41,000	400nm (scattered light in r+i+z filters)
		ND2.0	415 - 525	1	39,000 (9000 cts @ 500 nm)
		ND3.0	525 - 610	1	45,000 (6000 cts @ 600 nm)	600nm
		ND4.0	700	2	39,000 (7500 cts @ 700 nm)	700nm
		ND4.0	800	2	45,000	800nm
		ND4.0	900	2	38,000	900nm (second order / scattered light in g+r filters)
		ND4.0	1000	2	40,000	1µm (second order / scattered light in g+r filters)

---

GCALflat configurations for R600 Grating (IFU)
IFU configuration: IFU-R IFU-2
Note: It is not recommended to bin IFU spectra in the spatial direction
# GCALflat spectrum contaminated by scattered light blueward of 400nm

IFU	GMOS Filter	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
IFU-R	none	1x1	GMOS	400	300	21,000 (5000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
	none		GMOS	500	300	34,000	500nm (scattered light in i+z filters)
	none		GMOS	540 - 795	240	48,000	600nm
	none		GMOS	540 - 795	240	42,000	700nm
	none		none	795 - 890	6	34,000	800nm
	none		none	900	8	43,000	900nm (second order / scattered light in g+r filters)
	none		none	1000	8	41,000	1µm (second order / scattered light in g+r filters)
	none	2x1	GMOS	400	150	21,000 (5000 cts @ 400 nm)
	none		GMOS	500	150	34,000
	none		GMOS	540 - 795	120	48,000
	none		none	795 - 890	3	34,000
	none		none	900	4	43,000
	none		none	1000	4	41,000
	none	4x1	GMOS	400	75	21,000 (5000 cts @ 400 nm)
	none		GMOS	500	75	34,000
	none		GMOS	540 - 795	60	48,000
	none		none	795 - 890	1	23,000	not available
	none		none	900	2	43,000
	none		none	1000	2	41,000
IFU-2	g	1x1	GMOS	475	300	17,000	475nm
	g	2x1	GMOS	475	150	17,000
	g	4x1	GMOS	475	75	17,000
	r	1x1	GMOS	630	180	30,000	630nm
	r	2x1	GMOS	630	90	30,000
	r	4x1	GMOS	630	45	30,000
	i	1x1	none	780	6	38,000	780nm
	i	2x1	none	780	3	38,000
	i	4x1	none	780	1	25,000	not available
	z	1x1	none	925	8	47,000	925nm
	z	2x1	none	925	4	47,000
	z	4x1	none	925	2	47,000

---

GCALflat configurations for R831 Grating (Longslit or MOS)
Slit Width (arcsec): 0.25 0.50 0.75 1.00 1.50 2.00 5.00
GCALflat spectrum dominated by scattered light blueward of 400nm (shown in red)
GCAL ND filters give more scattered light than GMOS balance filter

Slit Width	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
0.25arcsec	1x1	GMOS	≤ 415	224	46,000 (11,000 cts @ 400 nm)	not available
		GMOS	415 - 565	128	48,000	not available
		GMOS	565 - 790	80	45,000	not available
		GMOS	790 - 850	80	49,000	not available
		none	≥ 850	2	25,000	not available
	2x1,1x2	GMOS	≤ 415	112	46,000 (11,000 cts @ 400 nm)	not available
		GMOS	415 - 565	64	48,000	not available
		GMOS	565 - 790	40	45,000	not available
		GMOS	790 - 850	40	48,000	not available
		none	≥ 850	1	25,000	not available
	2x2,4x1,1x4	GMOS	≤ 415	56	46,000 (11,000 cts @ 400 nm)	not available
		GMOS	415 - 565	32	48,000	not available
		GMOS	565 - 790	20	45,000	not available
		GMOS	790 - 850	20	49,000	not available
		ND2.0	≥ 850	64	46,000	not available
	2x4,4x2	GMOS	≤ 415	28	46,000 (11,000 cts @ 400 nm)	not available
		GMOS	415 - 565	16	48,000	not available
		GMOS	565 - 790	10	45,000	not available
		GMOS	790 - 850	10	49,000	not available
		ND2.0	≥ 850	32	46,000	not available
	4x4	GMOS	≤ 415	14	46,000 (11,000 cts @ 400 nm)	not available
		GMOS	415 - 565	8	48,000	not available
		GMOS	565 - 790	5	45,000	not available
		GMOS	790 - 850	5	49,000	not available
		ND2.0	≥ 850	16	46,000	not available
0.5arcsec	1x1	GMOS	≤ 415	112	46,000 (11,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	64	48,000	500nm (scattered light in i+z filters)
		GMOS	565 - 790	40	45,000	600nm 700nm
		GMOS	790 - 850	40	49,000	800nm (second order / scattered light in g filter)
		none	900	1	25,000	900nm (second order / scattered light in g+r filters)
		none	1000	1	25,000	1µm (second order / scattered light in g+r+i filters)
	2x1,1x2	GMOS	≤ 415	56	46,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	32	48,000
		GMOS	565 - 790	20	45,000
		GMOS	790 - 850	20	49,000
		ND2.0	900	64	46,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	64	45,000	1µm (second order / scattered light in g+r+i filters)
	2x2,4x1,1x4	GMOS	≤ 415	28	46,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	16	48,000
		GMOS	565 - 790	10	45,000
		GMOS	790 - 850	10	49,000
		ND2.0	≥ 850	32	46,000
	2x4,4x2	GMOS	≤ 415	14	46,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	8	48,000
		GMOS	565 - 790	5	45,000
		GMOS	790 - 850	5	49,000
		ND2.0	≥ 850	16	46,000
	4x4	GMOS	≤ 415	7	46,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	4	48,000
		GMOS	565 - 790	2	35,000	600nm 700nm
		GMOS	790 - 850	2	38,000	800nm (second order / scattered light in g filter)
		ND2.0	≥ 850	8	46,000
0.75arcsec	1x1	GMOS	≤ 415	72	44,000 (11,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	40	45,000	500nm (scattered light in i+z filters)
		GMOS	565 - 790	24	40,000	600nm 700nm
		GMOS	790 - 850	24	43,000	800nm (second order / scattered light in g filter)
		none	900	1	38,000	900nm (second order / scattered light in g+r filters)
		none	1000	1	37,000	1µm (second order / scattered light in g+r+i filters)
	2x1,1x2	GMOS	≤ 415	36	44,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	20	45,000
		GMOS	565 - 790	12	40,000
		GMOS	790 - 850	12	43,000
		ND2.0	900	40	43,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	40	42,000	1µm (second order / scattered light in g+r+i filters)
	2x2,1x4,4x1	GMOS	≤ 415	18	44,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	10	45,000
		GMOS	565 - 790	6	40,000
		GMOS	790 - 850	6	43,000
		ND2.0	≥ 850	20	43,000
	2x4,4x2	GMOS	≤ 415	9	44,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	5	45,000
		GMOS	565 - 790	3	40,000
		GMOS	790 - 850	3	43,000
		ND2.0	≥ 850	10	43,000
	4x4	GMOS	≤ 415	4	39,000 (9500 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	2	35,000	500nm (scattered light in i+z filters)
		GMOS	565 - 790	1	26,000	600nm 700nm
		GMOS	790 - 850	1	29,000	800nm (second order / scattered light in g filter)
		GMOS	≥ 850	5	42,000
1.0arcsec	1x1	GMOS	≤ 415	56	44,000 (11,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	32	47,000	500nm (scattered light in i+z filters)
		GMOS	565 - 790	20	44,000	600nm 700nm
		GMOS	790 - 850	20	48,000	800nm (second order / scattered light in g filter)
		ND2.0	900	64	46,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	64	45,000	1µm (second order / scattered light in g+r+i filters)
	2x1,1x2	GMOS	≤ 415	28	44,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	16	47,000
		GMOS	565 - 790	10	44,000
		GMOS	790 - 850	10	48,000
		ND2.0	≥ 850	32	46,000
	2x2,4x1,1x4	GMOS	≤ 415	14	44,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	8	47,000
		GMOS	565 - 790	5	44,000
		GMOS	790 - 850	5	48,000
		ND2.0	≥ 850	16	46,000
	2x4,4x2	GMOS	≤ 415	7	44,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	4	47,000
		GMOS	565 - 790	2	35,000	600nm 700nm
		GMOS	790 - 850	2	38,000	800nm (second order / scattered light in g filter)
		ND2.0	≥ 850	8	46,000
	4x4	GMOS	≤ 415	3	37,000 (9200 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	2	48,000
		GMOS	565 - 790	1	35,000
		GMOS	790 - 850	1	38,000
		ND2.0	≥ 850	4	46,000
1.5arcsec	1x1	GMOS	≤ 415	36	43,000 (11,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	20	44,000	500nm (scattered light in i+z filters)
		GMOS	565 - 790	12	39,000	600nm 700nm
		GMOS	790 - 850	12	43,000	800nm (second order / scattered light in g filter)
		ND2.0	900	40	42,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	40	41,000	1µm (second order / scattered light in g+r+i filters)
	2x1,1x2	GMOS	≤ 415	18	43,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	10	44,000
		GMOS	565 - 790	6	39,000
		GMOS	790 - 850	6	43,000
		ND2.0	≥ 850	20	42,000
	2x2,4x1,1x4	GMOS	≤ 415	9	43,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	5	44,000
		GMOS	565 - 790	3	39,000
		GMOS	790 - 850	3	43,000
		ND2.0	≥ 850	10	42,000
	2x4,4x2	GMOS	≤ 415	4	39,000 (9400 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	2	35,000	500nm (scattered light in i+z filters)
		GMOS	565 - 790	1	26,000	600nm 700nm
		GMOS	790 - 850	1	28,000	800nm (second order / scattered light in g filter)
		ND2.0	≥ 850	5	42,000
	4x4	GMOS	≤ 415	2	39,000 (9400 cts @ 400 nm)
		GMOS	415 - 565	1	35,000
		ND2.0	600	2	33,000 (11,000 cts @ 600 nm)	600nm
		ND2.0	700	2	39,000	700nm
		ND2.0	800	2	38,000	800nm (second order / scattered light in g filter)
		ND2.0	900	2	34,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	2	33,000	1µm (second order / scattered light in g+r+i filters)
2.0arcsec	1x1	GMOS	≤ 415	28	45,000 (11,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	16	47,000	500nm (scattered light in i+z filters)
		GMOS	565 - 790	10	43,000	600nm 700nm
		GMOS	790 - 850	10	48,000	800nm
		ND2.0	900	32	45,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	32	44,000	1µm (second order / scattered light in g+r+i filters)
	2x1,1x2	GMOS	≤ 415	14	45,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	8	47,000
		GMOS	565 - 790	5	43,000
		GMOS	790 - 850	5	48,000
		ND2.0	≥ 850	16	45,000
	2x2,4x1,1x4	GMOS	≤ 415	7	45,000 (11,000 cts @ 400 nm)
		GMOS	415 - 565	4	47,000
		GMOS	565 - 790	2	35,000	600nm 700nm
		GMOS	790 - 850	2	38,000	800nm
		ND2.0	≥ 850	8	45,000
	2x4,4x2	GMOS	≤ 415	3	38,000 (9000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	2	47,000
		GMOS	565 - 790	1	35,000
		GMOS	790 - 850	1	38,000
		ND2.0	≥ 850	4	45,000
	4x4	GMOS	≤ 450	1	25,000 (6000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	450 - 565	1	47,000
		ND2.0	565 - 620	2	43,000 (15,000 cts @ 600 nm)	600nm
		ND2.0	620 - 850	1	26,000	700nm
		ND2.0	620 - 850	1	25,000	800nm
		ND2.0	≥ 850	2	45,000
5.0arcsec	1x1	GMOS	≤ 415	10	40,000 (9800 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	415 - 565	6	44,000	500nm (scattered light in i+z filters)
		GMOS	565 - 790	4	43,000	600nm 700nm
		GMOS	790 - 850	4	47,000	800nm
		ND2.0	900	12	42,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	12	41,000	1µm (second order / scattered light in g+r+i filters)
	2x1,1x2	GMOS	≤ 415	5	40,000 (9800 cts @ 400 nm)
		GMOS	415 - 565	3	44,000
		GMOS	565 - 790	2	43,000
		GMOS	790 - 850	2	47,000
		ND2.0	≥ 850	6	42,000
	2x2,4x1,1x4	GMOS	≤ 450	2	31,000 (7600 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	450 - 565	1	29,000	500nm (scattered light in i+z filters)
		GMOS	565 - 790	1	43,000
		GMOS	790 - 850	1	47,000
		ND2.0	≥ 850	3	42,000
	2x4,4x2	GMOS	≤ 450	1	31,000 (7600 cts @ 400 nm)
		ND2.0	450 - 515	4	41,000 (16,000 cts @ 500 nm)	500nm (scattered light in i+z filters)
		ND2.0	515 - 580	2	37,000 (11,000 cts @ 550 nm)	550nm (scattered light in i+z filters)
		ND2.0	600	1	26,000 (9300 cts @ 600 nm)	600nm
		ND2.0	700	1	32,000	700nm
		ND2.0	800	1	31,000	800nm
		ND2.0	900	1	28,000	900nm (second order / scattered light in g+r filters)
		ND2.0	1000	1	26,000	1µm (second order / scattered light in g+r+i filters)
	4x4	ND2.0	≤ 450	4	17,000	400nm (scattered light in r+i+z filters)
		ND2.0	450 - 515	2	41,000 (16,000 cts @ 500 nm)
		ND2.0	515 - 580	1	37,000 (10,000 cts @ 550 nm)
		ND3.0	580 - 600	2	46,000 (11,000 cts @ 600 nm)	600nm
		ND3.0	600 - 665	1	44,000 (6800 cts @ 650 nm)	650nm
		ND4.0	665 - 770	3	43,000 (12,500 cts @ 600 nm)	700nm
		ND4.0	770 - 840	2	33,000	800nm
		ND4.0	900	3	42,000	900nm
		ND4.0	1000	3	41,000	1µm (scattered light in i filter)

---

GCALflat configurations for R831 Grating (IFU)
IFU configuration: IFU-R IFU-2
Note: It is not recommended to bin IFU spectra in the spatial direction
# GCALflat spectrum contaminated by scattered light blueward of 400nm

IFU	GMOS Filter	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	Spectra (GMOS-N original EEV)
IFU-R	none	1x1	GMOS	400	300	14,000 (3000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
	none		GMOS	500	300	30,000	500nm (scattered light in i+z filters)
	none		GMOS	600	240	38,000	600nm (not available)
	none		GMOS	700	240	37,000	700nm (not available)
	none		none	800	8	34,000	800nm
	none		none	900	8	31,000	900nm (second order / scattered light in g+r filters)
	none		none	1000	8	28,000	1µm (second order / scattered light in g+r+i filters)
	none	2x1	GMOS	400	150	14,000 (3000 cts @ 400 nm)
	none		GMOS	500	150	30,000
	none		GMOS	600	120	38,000
	none		GMOS	700	120	37,000
	none		none	800	4	34,000
	none		none	900	4	31,000
	none		none	1000	4	28,000
	none	4x1	GMOS	400	75	14,000 (3000 cts @ 400 nm)
	none		GMOS	500	75	30,000
	none		GMOS	600	60	38,000
	none		GMOS	700	60	37,000
	none		none	800	2	34,000
	none		none	900	2	31,000
	none		none	1000	2	28,000
IFU-2	g+GG455	1x1	GMOS	506	300	15,000	475nm (not available)
	g+GG455	2x1	GMOS	506	150	15,000
	g+GG455	4x1	GMOS	506	75	15,000
	r+RG610	1x1	GMOS	656.5	240	25,000	630nm (not available)
	r+RG610	2x1	GMOS	656.5	120	25,000
	r+RG610	4x1	GMOS	656.5	60	25,000
	i+CaT	1x1	none	815	8	25,000	780nm (not available)
	i+CaT	2x1	none	815	4	25,000
	i+CaT	4x1	none	815	2	25,000
	z+CaT	1x1	none	890.5	8	25,000	925nm (not available)
	z+CaT	2x1	none	890.5	4	25,000
	z+CaT	4x1	none	890.5	2	25,000

---

GCALflat configurations for B1200 Grating (Longslit or MOS)
Slit Width (arcsec): 0.25 0.50 0.75 1.00 1.50 2.00 5.00
- GCALflat spectrum dominated by scattered light blueward of 400nm (shown in red)
- Scattered light only shown for 1x1 1.0arcsec slit unless contribution is significant
- GCAL ND filters give more scattered light than GMOS balance filter

Slit Width	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	GMOS-N original EEV Spectra	GMOS-S EEV Spectra
0.25arcsec	1x1	GMOS	400	128	26,000 (8000 cts @ 400 nm)
		GMOS	500	96	35,000
		GMOS	600	96	35,000
		none	700	4	31,000
		none	800	4	30,000
		none	900	6
	2x1,1x2	GMOS	400	64	26,000 (8000 cts @ 400 nm)
		GMOS	500	48	35,000
		GMOS	600	48	35,000
		none	700	2	31,000
		none	800	2	30,000
		none	900	3
	2x2,4x1,1x4	GMOS	400	32	26,000 (8000 cts @ 400 nm)
		GMOS	500	24	35,000
		GMOS	600	24	35,000
		none	700	1	31,000
		none	800	1	30,000
		GMOS	900	40	28,000
	2x4,4x2	GMOS	400	16	26,000 (8000 cts @ 400 nm)
		GMOS	500	12	35,000
		GMOS	600	12	35,000
		ND2.0	700	48	36,000
		ND2.0	800	48	36,000
		GMOS	900	20	28,000
	4x4	GMOS	400	8	26,000 (8000 cts @ 400 nm)
		GMOS	500	6	35,000
		GMOS	600	6	35,000
		ND2.0	700	24	36,000
		ND2.0	800	24	36,000
		GMOS	900	10	28,000
0.5arcsec	1x1	GMOS	400	64	26,000 (8000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)	400nm
		GMOS	500	48	35,000	500nm	500nm
		GMOS	600	48	35,000	600nm	600nm
		none	700	2	31,000	700nm
		none	800	2	30,000	800nm
		none	900	3		not available
	2x1,1x2	GMOS	400	32	26,000 (8000 cts @ 400 nm)
		GMOS	500	24	35,000
		GMOS	600	24	35,000
		none	700	1	31,000
		none	800	1	30,000
		GMOS	900	40	28,000	900nm
	2x2,4x1,1x4	GMOS	400	16	26,000 (8000 cts @ 400 nm)		400nm
		GMOS	500	12	35,000		500nm
		GMOS	600	12	35,000		600nm
		ND2.0	700	48	36,000	700nm
		ND2.0	800	48	36,000	800nm
		GMOS	900	20	28,000
	2x4,4x2	GMOS	400	8	26,000 (8000 cts @ 400 nm)
		GMOS	500	6	35,000
		GMOS	600	6	35,000
		ND2.0	700	24	36,000
		ND2.0	800	24	36,000
		GMOS	900	10	28,000
	4x4	GMOS	400	4	26,000 (8000 cts @ 400 nm)
		GMOS	500	3	35,000
		GMOS	600	3	35,000
		ND2.0	700	12	36,000
		ND2.0	800	12	36,000
		GMOS	900	5	28,000
0.75arcsec	1x1	GMOS	400	48	29,000 (9000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	500	32	35,000	500nm
		GMOS	600	32	35,000	600nm
		none	700	1	24,000	700nm
		none	800	1	23,000	800nm
		GMOS	900	64	34,000	900nm
	2x1,1x2	GMOS	400	24	29,000 (9000 cts @ 400 nm)
		GMOS	500	16	35,000
		GMOS	600	16	35,000
		ND2.0	700	64	36,000	700nm
		ND2.0	800	64	36,000	800nm
		GMOS	900	32	34,000
	2x2,1x4,4x1	GMOS	400	12	29,000 (900 cts @ 400 nm)
		GMOS	500	8	35,000
		GMOS	600	8	35,000
		ND2.0	700	32	36,000
		ND2.0	800	32	36,000
		GMOS	900	16	34,000
	2x4,4x2	GMOS	400	6	29,000 (9000 cts @ 400 nm)
		GMOS	500	4	35,000
		GMOS	600	4	35,000
		ND2.0	700	16	36,000
		ND2.0	800	16	36,000
		GMOS	900	8	34,000
	4x4	GMOS	400	3	29,000 (900 cts @ 400 nm)		400nm
		GMOS	500	2	35,000		500nm
		GMOS	600	2	35,000		600nm
		ND2.0	700	8	36,000
		ND2.0	800	8	36,000
		GMOS	900	4	34,000
1.0arcsec	1x1	GMOS	400	32	26,000 (8000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)	400nm
		GMOS	500	24	36,000	500nm (scattered light in i+z filters)	500nm
		GMOS	600	24	36,000	600nm (scattered light in i+z filters)	600nm
		none	700	1	32,000	700nm (scattered light in g+z filters)	not available
		none	800	1	31,000	800nm (scattered light in g+r filters)	not available
		GMOS	900	40	29,000	900nm (2nd order + scattered light in g+r filters)	not available
	2x1,1x2	GMOS	400	16	26,000 (8000 cts @ 400 nm)
		GMOS	500	12	36,000
		GMOS	600	12	36,000
		ND2.0	700	48	36,000	700nm
		ND2.0	800	48	36,000	800nm
		GMOS	900	20	29,000
	2x2,4x1,1x4	GMOS	400	8	26,000 (8000 cts @ 400 nm)		400nm
		GMOS	500	6	36,000		500nm
		GMOS	600	6	36,000		600nm
		ND2.0	700	24	36,000
		ND2.0	800	24	36,000
		GMOS	900	10	29,000
	2x4,4x2	GMOS	400	4	26,000 (8000 cts @ 400 nm)
		GMOS	500	3	36,000
		GMOS	600	3	36,000
		ND2.0	700	12	36,000
		ND2.0	800	12	36,000
		GMOS	900	5	29,000
	4x4	GMOS	400	2	26,000 (8000 cts @ 400 nm)		400nm
		GMOS	500	1	24,000	500nm
		GMOS	600	1	23,000	600nm
		ND2.0	700	6	36,000		700nm
		ND2.0	800	6	36,000
		GMOS	900	3	34,000	900nm
1.5arcsec	1x1	GMOS	400	24	28,000 (9000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)	400nm
		GMOS	500	16	35,000	500nm	500nm
		GMOS	600	16	35,000	600nm	600nm
		ND2.0	700	64	36,000	700nm
		ND2.0	800	64	36,000	800nm
		GMOS	900	32	34,000	900nm
	2x1,1x2	GMOS	400	12	28,000 (9000 cts @ 400 nm)
		GMOS	500	8	35,000
		GMOS	600	8	35,000
		ND2.0	700	32	36,000
		ND2.0	800	32	36,000
		GMOS	900	16	34,000
	2x2,4x1,1x4	GMOS	400	6	28,000 (9000 cts @ 400 nm)
		GMOS	500	4	35,000
		GMOS	600	4	35,000
		ND2.0	700	16	36,000
		ND2.0	800	16	36,000
		GMOS	900	8	34,000
	2x4,4x2	GMOS	400	3	28,000 (9000 cts @ 400 nm)
		GMOS	500	2	35,000
		GMOS	600	2	35,000
		ND2.0	700	8	36,000
		ND2.0	800	8	36,000
		GMOS	900	4	34,000
	4x4	GMOS	400	2	38,000 (12,000 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	500	1	35,000
		GMOS	600	1	35,000
		ND2.0	700	4	36,000		700nm
		ND2.0	800	4	36,000
		GMOS	900	2	34,000
2.0arcsec	1x1	GMOS	400	16	25,000 (7500 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	500	12	35,000	500nm
		GMOS	600	12	35,000	600nm
		ND2.0	700	48	36,000	700nm
		ND2.0	800	48	36,000	800nm
		GMOS	900	20	28,000	900nm
	2x1,1x2	GMOS	400	8	25,000 (7500 cts @ 400 nm)
		GMOS	500	6	35,000
		GMOS	600	6	35,000
		ND2.0	700	24	36,000
		ND2.0	800	24	36,000
		GMOS	900	10	28,000
	2x2,4x1,1x4	GMOS	400	4	25,000 (7500 cts @ 400 nm)
		GMOS	500	3	35,000
		GMOS	600	3	35,000
		ND2.0	700	12	36,000
		ND2.0	800	12	36,000
		GMOS	900	5	28,000
	2x4,4x2	GMOS	400	2	25,000 (7500 cts @ 400 nm)
		GMOS	500	1	23,000	500nm
		GMOS	600	1	22,000	600nm
		ND2.0	700	6	36,000
		ND2.0	800	6	36,000
		GMOS	900	2	22,000	900nm
	4x4	GMOS	400	1	25,000 (7500 cts @ 400 nm)
		ND2.0	500	8	34,000	500nm (scattered light in i+z filters)
		ND2.0	600	4	39,000	600nm (scattered light in i+z filters)
		ND2.0	700	3	36,000
		ND2.0	800	3	36,000
		GMOS	900	1	22,000
5.0arcsec	1x1	GMOS	400	8	31,000 (9500 cts @ 400 nm)	400nm (scattered light in r+i+z filters)
		GMOS	500	5	36,000	500nm
		GMOS	600	5	36,000	600nm
		ND2.0	700	16	29,000	700nm
		ND2.0	800	16	29,000	800nm
		GMOS	900	8	28,000	900nm
	2x1,1x2	GMOS	400	4	31,000 (9500 cts @ 400 nm)
		GMOS	500	2	29,000	500nm
		GMOS	600	2	29,000	600nm
		ND2.0	700	8	29,000
		ND2.0	800	8	29,000
		GMOS	900	4	28,000
	2x2,4x1,1x4	GMOS	400	2	31,000 (9500 cts @ 400 nm)
		GMOS	500	1	29,000
		GMOS	600	1	29,000
		ND2.0	700	4	29,000		700nm
		ND2.0	800	4	29,000
		GMOS	900	2	28,000
	2x4,4x2	GMOS	400	1	31,000 (9500 cts @ 400 nm)
		ND2.0	500	8	??,000	not available (scattered light in i+z filters)
		ND2.0	600	4	??,000	not available (scattered light in i+z filters)
		ND2.0	700	2	29,000
		ND2.0	800	2	29,000
		GMOS	900	1	28,000
	4x4	ND2.0	400	16	34,000	400nm (scattered light in r+i+z filters)
		ND2.0	500	4	??,000
		ND2.0	600	2	??,000
		ND2.0	700	1	29,000
		ND2.0	800	1	29,000
		ND2.0	900	2	??,000	not available

---

GCALflat configurations for B1200 Grating (IFU)
IFU configuration: IFU-R IFU-2
Note: It is not recommended to bin IFU spectra in the spatial direction
# GCALflat spectrum contaminated by scattered light blueward of 400nm

IFU	GMOS Filter	X,Y Binning	GCAL filter	Central Wavelength (nm)	Exp. Time (sec)	Peak Counts (GMOS-N original EEV)	GMOS-N original EEV Spectra	GMOS-S EEV Spectra
IFU-R	none	1x1	GMOS	400	300	??,000 (??00 cts @ 400 nm)	not available (scattered light in r+i+z filters)
	none		GMOS	500	300	??,000	not available
	none		GMOS	600	300	??,000	not available
	none		none	700	12	??,000	not available
	none		none	800	12	??,000	not available
	none		none	900	16	??,000	not available
	none	2x1	GMOS	400	150	??,000 (??00 cts @ 400 nm)
	none		GMOS	500	150	??,000
	none		GMOS	600	150	??,000
	none		none	700	6	??,000
	none		none	800	6	??,000
	none		none	900	8	??,000
	none	4x1	GMOS	400	75	??,000 (??00 cts @ 400 nm)
	none		GMOS	500	75	??,000
	none		GMOS	600	75	??,000
	none		none	700	3	??,000
	none		none	800	3	??,000
	none		none	900	4	??,000
IFU-2	g+OG515	1x1	GMOS	536	300	??,000	not available
	g+OG515	2x1	GMOS	536	150	??,000
	g+OG515	4x1	GMOS	536	75	??,000

---

---

CuAr Arcs: R150 R400 B600 R600 R831 B1200

---

All CuAr Arcs are taken with

• GCALlamp=CuAr
• GCALdiffuser=VISIBLE

===============================> CuAr arcs <=======================================
-----------------------------------------------------------------------------------
Grating    lambda_min   lambda_max    binX    binY    FPU    GCALFilter   Exptime
-----------------------------------------------------------------------------------
R150         400          950          1       1      1.0        None        1*
R150         400          950          2       1      1.0        GMOS       15
R150         400          950          1       2      1.0        GMOS       15
R150         400          950          2       2      1.0        GMOS        8       
R150         400          950          4       1      1.0        GMOS        8       
R150         400          950          1       4      1.0        GMOS        8        
R150         400          950          4       2      1.0        GMOS        4
R150         400          950          2       4      1.0        GMOS        4
R150         400          950          4       4      1.0        GMOS        2       

R150         400          950          1       1      IFU        None       10
R150         400          950          2       1      IFU        None        5
R150         400          950          4       1      IFU        None        3


===============================> CuAr arcs <=======================================
-----------------------------------------------------------------------------------
Grating    lambda_min   lambda_max    binX    binY    FPU    GCALFilter   Exptime
-----------------------------------------------------------------------------------
R400         400          950          1       1      1.0        None        2
R400         400          950          2       1      1.0        None        1
R400         400          950          1       2      1.0        None        1
R400         400          950          2       2      1.0        GMOS       15
R400         400          950          4       1      1.0        GMOS       15
R400         400          950          1       4      1.0        GMOS       15
R400         400          950          4       2      1.0        GMOS        8
R400         400          950          2       4      1.0        GMOS        8
R400         400          950          4       4      1.0        GMOS        4

R400         400          950          1       1      IFU        None       20
R400         400          950          2       1      IFU        None       10
R400         400          950          4       1      IFU        None        5


===============================> CuAr arcs <=======================================
-----------------------------------------------------------------------------------
Grating    lambda_min   lambda_max    binX    binY    FPU    GCALFilter   Exptime
-----------------------------------------------------------------------------------
B600	     400          555  	       1       1      1.0        None       45
B600         400          555          2       1      1.0        None       30
B600         400          555          1       2      1.0        None       30
B600         400          555          2       2      1.0        None       20       
B600         400          555          4       1      1.0        None       20       
B600         400          555          1       4      1.0        None       20       
B600         400          555          4       2      1.0        None       10
B600         400          555          2       4      1.0        None       10
B600         400          555          4       4      1.0        None        5       

B600	     400          555  	       1       1      IFU        None      180
B600	     400          555  	       2       1      IFU        None      180
B600	     400          555  	       4       1      IFU        None      120

B600	     556          610  	       1       1      1.0        None       15 
B600         556          610          2       1      1.0        None        8 
B600         556          610          1       2      1.0        None        8 
B600         556          610          2       2      1.0        None        4       
B600         556          610          4       1      1.0        None        4       
B600         556          610          1       4      1.0        None        4       
B600         556          610          4       2      1.0        None        2       
B600         556          610          2       4      1.0        None        2       
B600         556          610          4       4      1.0        None        1       

B600	     556          610  	       1       1      IFU        None       90
B600	     556          610  	       2       1      IFU        None       60
B600	     556          610  	       4       1      IFU        None       30

B600	     611          950  	       1       1      1.0        None        3 
B600         611          950          2       1      1.0        GMOS       40 
B600         611          950          1       2      1.0        GMOS       40 
B600         611          950          2       2      1.0        GMOS       20        
B600         611          950          4       1      1.0        GMOS       20        
B600         611          950          1       4      1.0        GMOS       20       
B600         611          950          4       2      1.0        GMOS       10 
B600         611          950          2       4      1.0        GMOS       10 
B600         611          950          4       4      1.0        GMOS        5       

B600	     611          950  	       1       1      IFU        None       30       
B600	     611          950  	       2       1      IFU        None       15       
B600	     611          950  	       4       1      IFU        None        8       

For the R600 grating please use the configurations and exposure times given for the B600 grating.

===============================> CuAr arcs <=======================================
-----------------------------------------------------------------------------------
Grating    lambda_min   lambda_max    binX    binY    FPU    GCALFilter   Exptime
-----------------------------------------------------------------------------------
R831         400          590          1       1      1.0        None      180
R831         400          590          2       1      1.0        None      120
R831         400          590          1       2      1.0        None      120
R831         400          590          2       2      1.0        None       60
R831         400          590          4       1      1.0        None       60
R831         400          590          1       4      1.0        None       60
R831         400          590          4       2      1.0        None       30
R831         400          590          2       4      1.0        None       30
R831         400          590          4       4      1.0        None       15

R831         400          590          1       1      IFU        None      300
R831         400          590          2       1      IFU        None      180
R831         400          590          4       1      IFU        None      120

R831         591          650          1       1      1.0        None       30
R831         591          650          2       1      1.0        None       15
R831         591          650          1       2      1.0        None       15
R831         591          650          2       2      1.0        None        8
R831         591          650          4       1      1.0        None        8
R831         591          650          1       4      1.0        None        8
R831         591          650          4       2      1.0        None        4 
R831         591          650          2       4      1.0        None        4 
R831         591          650          4       4      1.0        None        2 

R831         591          650          1       1      IFU        None       90 
R831         591          650          2       1      IFU        None       45 
R831         591          650          4       1      IFU        None       20 

R831         651          950          1       1      1.0        None        2 
R831         651          950          2       1      1.0        None        1 
R831         651          950          1       2      1.0        None        1 
R831         651          950          2       2      1.0        None        1 
R831         651          950          4       1      1.0        None        1 
R831         651          950          1       4      1.0        None        1 
R831         651          950          4       2      1.0        GMOS       10
R831         651          950          2       4      1.0        GMOS       10
R831         651          950          4       4      1.0        GMOS        5

R831         651          950          1       1      IFU        None       30
R831         651          950          2       1      IFU        None       15
R831         651          950          4       1      IFU        None        8
-----------------------------------------------------------------------------------

For the B1200 grating please use the configurations and twice the exposure times listed for the B600 grating.