Changes between Version 3 and Version 4 of docs/CommissioningPlan/P3.14


Ignore:
Timestamp:
01/19/21 18:03:18 (4 years ago)
Author:
kradhakrishnan
Comment:

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  • docs/CommissioningPlan/P3.14

    v3 v4  
    1  == P3.14       Astrometry plate scale and orientation ==
     1 == P3.14        Sky background ==
    22•       **Phase**               :       3 
    33•       **Status**              :       Draft   
    4 •       **Category**            :       Nighttime Science Calibration (C5)
    5 •       **Recurrence**  :       every night starting from commissioning
    6 •       **Duration**            :       0.5 - 1.0 hours
     4•       **Category**            :       Nighttime testing (functionality and operability) (C4)
     5•       **Recurrence**  :       once at commissioning and then on request.
     6•       **Duration**            :       1 hour
    77**Description**
    8 •       Determine the astrometry of the science frame. Deduce detector on sky coordinates & plate scale from RA & DEC of a known multiple stellar systems. This calibration is to be done for a reference setup.
     8•       Acquire a series of sky backgrounds from science images, expected mainly when observing extended objects. A short sky background may also be useful for remaining deviant pixel removal.
    99**Prerequisites**
    1010•       Authorize SHARK-NIR on the SX side.
    11 •       Atmospheric conditions: AO working conditions.
    12 •       Bad pixel map, Background or Dark, Flat-field, distortion map
     11•       Atmospheric conditions: AO working conditions???
    1312**Procedure**
    14 •       Observe multiple system(s) with known characteristics without the coronagraph
     13•       Observe a blank field close to the science target (separation~10-20 arcsec)
     14•       The same set-up as normal science observations but AO is not running and coronagraph may be removed. A list of telescope offsets is added to reach an “empty” field and jitter.
    1515**Success criteria**
    16 •       Image scale better than 5 mas (goal 0.5 mas) over FoV, image orientation better than 3 arcmin (goal 18 arcsec)
     16•       10% accuracy (dependent on measurement frequency)
    1717**Notes**
    18 •       Same as activity 7.1 in AD4
     18•       Same as activity 7.6 in AD4
    1919**LBTO support**
    20 •       Support from LBTI/LBTO?
     20•       SOUL-AO support
    2121**Associated SHARK-NIR personnel**
    22 •       JF, LM, MdP
     22
    2323**Date performed and by whom**