Changes between Version 1 and Version 2 of docs/CommissioningPlan/P3.16


Ignore:
Timestamp:
01/19/21 18:04:00 (4 years ago)
Author:
kradhakrishnan
Comment:

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  • docs/CommissioningPlan/P3.16

    v1 v2  
    1 == P3.16        Instrumental throughput and absolute flux calibration ==
     1
     2== P3.16        Flux calibration (off-centered target observation) ==
    23•       **Phase**               :       3 
    34•       **Status**              :       Draft   
    4 •       **Category**            :       Nighttime testing (functionality and operability) (C4)
    5 •       **Recurrence**  :       once every month starting from commissioning and then on                                request for accurate photometry (using CI and DBI).
    6 •       **Duration**            :       20 minutes (per configuration, also depends on mag of star)
     5•       **Category**            :       Nighttime Science Calibration (C5)
     6•       **Recurrence**  :       once at commissioning and then on request for deep coronagraphic observations.
     7•       **Duration**            :       1 hour
    78**Description**
    8 •       Throughput calibration to obtain absolute flux calibration of science targets.
     9•       Flux calibration to allow contrast estimation between the central star and a close companion, by measuring the star flux out of the coronagraph
    910**Prerequisites**
    1011•       Authorize SHARK-NIR on the SX side.
    … …  
    1213•       Bad pixel map, Background or Dark, Flat-field, distortion map
    1314**Procedure**
    14 •       Observe a spectro-photometric standard star of known magnitude with no coronagraph and for required filters.
     15•       On target, the same set-up as an observation on science target; AO closed-loop, ND for bright targets to prevent detector saturation, the star behind coronagraph centered and off-centered keeping the stop. The derotator mode should be tracking the field with possible adjustment of the angle to prevent the star from rotating around the coronagraph.
     16•       Observe a star with the coronagraphic devices after an offset of 0.5” is applied.
    1517**Success criteria**
    16 •       Flux measurement better than 10%
     18•       Flux of the star measured within the accuracy of 0.1 mag
    1719**Notes**
    18 •       Same as activity 7.3 in AD4
     20•       Same as activity 7.2 in AD4
    1921**LBTO support**
    20 •       Support from LBTI/LBTO?
     22•       SOUL-AO support
    2123**Associated SHARK-NIR personnel**
    22 •       JF, LM, MdP
     24
    2325**Date performed and by whom**