EFOSC2ESO Faint Object Spectrograph and Camera
EFOSC2 Setup night checklist
The instrument setup request should be sent at least the
night before the setup night so that the changes can be made in the lab
already, or during the afternoon of the setup night. The instrument should
be setup so that the configurations of the forthcoming observing runs can
|Setup night date|
Categories: C-Critical, N-Necessary, D-Desirable, O-Optional.
|Task||OB to execute||Done?||Category||Comment|
|Take biases in all modes||Biases_x10_all_modes.obx||C|
|Check biases for structures||C|
|Compare biase levels and noise with normal values||C|
|Take HeAr arcs for mounted grisms||Spec_Arcs_1as.obx||C||Skip unmounted grisms|
|Check grisms are labelled correctly||C||For each grism, check the HeAr correspond to diagram on web.|
|Check grisms are mounted correctly||C||Red should be up|
|Check HeAr lamps||C||Are the line intensities reasonable?|
|Spectroscopic dome flats 1 arcsec slit all grisms||Spec_FF_Dome_1as.obx||C||Skip unounted grisms.
If not possilble, take internal flats with the quartz lamp.
Change the starplate if 1 arcsec slit is not mounted.
|Spectroscopic flats for all mounted slits, one grism||C||Take one flat (internal or external) for each mounted slit.|
|Check spectroscopic flats||C||Check for the quality of all mounted slits.|
|Check identity of special filters||N||If some special filters are mounted, make sure of their
real filter ID. This is especially the case if the filter was left in the
instrument from the last observing run. Do not rely solely on the setup
Consider removal of unnecessary filters for the observing run.
|Imaging dome flats||Imaging_FF_dome.obx||C||Take for all mounted filters|
|Imaging sky flats||D||Usually EFOSC is not ready early enough for these|
|Check CCD||C||Check carefully a dome flat image to see if the CCD is working properly. Note that sometimes a problem with the CCD is only visible in the flat and not in the bias.|
|Check lightpath||C||Check for vignetting|
|Check quality of filters||N||Monitor quality of mounted filters, from star images or from flats. Check for internal reflections for narrow band filters.|
|Check all observing templates and calibration templates||N||Make OBs on all observing modes and execute to see if they execute without problems.|
|Check telescope pointing||C|
|Check image quality||C||Are focused images round?|
|Check focusing||C||Can telescope focus?|
|Focus with focus wedge||C||Note down encoder units|
|Focus with focus sequence||C||Compare encoder units for focus wedge to focus sequence. If they are very different, the focus wedge must be realigned.|
|Photometric standards at different airmasses||Imaging_Std_XXXX.obx||N||Preferably a range of standards between airmass of 1
Not necessary if non-photometric, but you may want to observe a standard field to check the pointing, focusing and image quality.
|Spectrophotometric standard(s)||N||Take for all grisms with 5 arcsec slit, parallactic angle. One standard is enough per grism.|
|Check alignment of slit||C||If star spectrum is tilted, slit must be realigned|
|Check MOS mask design with xm on wlsmos||O||Critical if observer will be doing MOS observations.
Check creation of.mask and.msk files.
|Check MOS punch machine online and that the punch program is running on mos@w3p6ins||O||Critical if observer will be doing MOS observations.|
|Check MOS punch can punch||O||Critical if observer will be doing MOS observations.
Punch a plate and check the slits correspond to the design.
|Check punch head quality||O||Critical if observer will be doing MOS observations.
Inspect quality of punched slits.
|Are there enough blank MOS masks?||O|
|i band fringes||O||A series of 10 minute i band images with jitter|
|Bad pixel mask||O||domeflats with different mean levels.|
|Astrometric field||O||For working out pixel size and chip orientation|
|Polarimetric mode||O||Critical if this observer is going to do polarimetry.|
|Check special setup||C||Special observing modes and procedures of visiting astronomer should be tested|
|Check data subscriber + delivery||C||Is data subscriber working properly?
Is data sent to w3p6off and w3p6drl?
|Check disk spaces||C||Is there enough room on w3p6off and w3p6drl?|
|Check consumables||D||Is there enough CDs, DAT tapes, paper?|
|Send comments to : ls-spectro
Last modified: Fri Feb 28 06:12:35 UTC 2003