Acquisition Camera Phase I (Proposal) and Phase II (OT) Checklist
To demonstrate technical feasibility or speed verification you should consider the following checklists when writing
your telescope proposal or preparing your Phase II program.
Checklist for AcqCam Phase I proposals
- Instrument configuration:
- Are the requested filters specified in the proposal instrument resource
- Check if your requested observations do not conflict with the current instrument
- Telescope peripheral wavefront sensors:
- Are the baseline calibrations
sufficient? If not, what additional calibration data are required for
- Is photometry better than 10% needed? If so, have appropriate photometric
standard star observations been included?
- Has sufficient observing time been requested for additional calibrations?
- Remember that I-band blank-sky flats are provided as part of the
baseline calibrations to remove fringing, but if you need accurate
extra time should be included to obtain blank-sky flats in the remaining
- Observing time:
- Did you confirm the exposure time and S/N using the AcqCam Integration Time Calculator, adjusting the observing conditions as requested in the proposal?
- Are Gemini-specific overheads
included in the time requested in your proposal? Remember that different
observing modes with the AcqCam carry different overheads.
- Have overheads been included for additional calibrations?
- Recheck the baseline calibration list. Whatever is there should
not be included in your observing time.
requested (for queue-scheduled observations):
- Is the expected
(scaled to the airmass of your target) sufficient for your program? What
is the minimum image quality necessary for the science?
- What level of
is acceptable? Is photometric weather required?
Is dark time required?
- Note the product of the probabilities of each of the conditions
listed above. You might wish to reconsider the minimum requirements of your
program, especially if submitting a Quick Response/Target of Opportunity
- If submitting a Target-of-Opportunity proposal, are your trigger conditions
well defined? Please check the
page to review the process guidelines.
- Recheck the observing time, overheads and observing conditions requested!
Checklist for AcqCam Phase II (OT) programs
Please consult the general
Phase II checklist first to identify the most common problems.
- AcqCam Component:
- If windowing/binning are required, have the appropriate configuration
- If this observation requires fast readout (i.e., no Sequence Iterator
defined) have the appropriate filters and exposure time been defined?
Has a note been added describing the duration and remaining details of
- Sequence Iterator:
- Have all filters to be used and the corresponding exposure times
- If dithering, has the offset pattern been correctly defined?
- Has the number of repeats been specified at the correct place?
- If this is a long sequence, is the number of steps less than 200?
- If not dithering, is there a bright star in the field that may heavily
saturate the detector in the requested exposure time? If so, please consider
moving the target within the science field of view so to move the bright
object out of it.
- Are the overheads
acceptable for the science objectives of your proposal? Note that
binning/windowing will NOT substantially reduce the 7-9 sec overhead
incurred when dithering or filter changes are required.
- Quick response proposals:
- Is this a one-time trigger or is to be considered a "standing order"?
If the latter, do not forget to include the minimum/maximum length of
the interruption, as well as how long is the observation to be left "standing".
See the Quick Response
page for details.
- If follow-up visits are requested, has the desired interval and observation
details been included as a Note?
- Had the phone number/e-mail of a contact available for rapid clarification
of details been included?
- If this is not the first trigger requested for the program, please
add rather than substitute observations! Otherwise, all previous
information on your program will be lost when the new xml file is uploaded
into the database.
Last update August 21, 2002; Cláudia Winge