Gemini North Semester 2021A - Dates are local HST
The semester calendar shows multi-instrument queue nights, scheduled classical or Priority Visitor runs, and engineering or commissioning. Dates are local HST, dates in red are weekends and holidays.
Instruments potentially usable are indicated by the colored-horizontal bands (see color key below). Note: Rapid ToO PIs should always check																			the current instrument configuration page
Not all visiting instruments schedule are not confirmed yet at this time.  Altair is available in NGS and LGS modes.
	Key:		GMOS							NIRI					NIFS					Visiting					Altair
			GMOS and GRACES							GNIRS										Eng./Commis.
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
Feb	GMOS																																Feb
	GNIRS
27 full	NIRI/NIFS
11 new	Altair
	Visiting	ALOPEKE																MAROON - X
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Mar	GMOS																																Mar
	GNIRS
28 full	NIRI/NIFS
13 new	Altair
	Visiting	MAROON -X
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Apr	GMOS																																Apr
	GNIRS
27 full	NIRI/NIFS
12 new	Altair
	Visiting															MAROON - X
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
May	GMOS																																May
	GNIRS
26 full	NIRI/NIFS
11 new	Altair
	Visiting																				MAROON - X
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
June	GMOS																																June
	GNIRS
24 full	NIRI/NIFS
10 new	Altair
	Visiting	MAROON -X																						ALOPEKE
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
July	GMOS																																July
	GNIRS
24 full	NIRI/NIFS
10 new	Altair