Changes between Version 8 and Version 9 of docs/CommissioningPlan/P4.9


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Timestamp:
02/04/21 15:20:33 (4 years ago)
Author:
kradhakrishnan
Comment:

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  • docs/CommissioningPlan/P4.9

    v8 v9  
    1 == 4.9 Disk: High-contrast images of circumstellar disks        ==
     1== 4.9  Solar system: Surface heterogeneity of trans-neptunian objects ==
    22•       **Phase**               :       4 
    33•       **Status**              :       Draft   
    44•       **Category**            :       Science verification / Early science (C8)
    55•       **Recurrence**  :       once after the completion of nighttime testing and performance check
    6 •       **Duration**            :       4 night(s)
     6•       **Duration**            :       1 night(s)
    77**Description**
    8 •       Disk: High-contrast images of circumstellar disks
     8•       Solar system: Surface heterogeneity of trans-neptunian objects
    99**Prerequisites**
    1010•       Authorize SHARK-NIR on the SX side.
    1111•       Atmospheric conditions: CLEAR
    1212•       Bad pixel map, Background or Dark, Flat-field, distortion map
    13 •       Cloud Cover             : no cloud
    14 •       Astronomical Seeing     : 0.8" or better
     13•       Cloud Cover             : no clouds
     14•       Astronomical Seeing     : 0.9" or better
    1515•       Sky Background  : Any
    16 •       Water Vapor             : low
    17 •       Timing Windows  : better to observe during the passage of the target at the meridian (+/- 1 hour before)
    18 •       Observing Targets       : TBD. We will consider stars with H mag in the range 4-12 (typical 7-9), R will have a similar distribution. It would be better to observe target with disk yet observed in NIR)
     16•       Water Vapor             : Low
     17•       Timing Windows  : moving targets with significant variations of magnitude, angular size and proper motion.
     18•       Observing Targets       : TBD. Transneptunian small objects.
    1919•       Observing Filters       : TBD
    20 •       Detector Mode, DIT: according to the target brightness
     20•       Detector Mode, DIT: According to the target brightness
    2121•       Daytime Calibration Data required: dark/background, flat
    22 •       Nighttime Calibration Data required: flux calibration, star centering
     22•       Nighttime Calibration Data required: none
    2323
    2424**Procedure**
    25 •       After pre-set and acquisition of the target we will run on flux calibration template with the star off-centered from the coronagraph (short template - few minutes). After this, a centering observation follows with the Fourier mode on the DM allowing the creation of four satellite spots (around 5% of the target brightness). Also, this template is short.
    26 * We then perform the scientific coronagraphic observation using pupil stabilized observing mode. This observation should be taken during the passage of the star to the meridian to maximize the rotation of the FOV and allowing to implement the ADI. This part should be at least 1:20-1:30 hours long.
    27 * The observation is closed running again the centering and flux calibration templates with the same modalities adopted at the beginning of the observations.
    28 
     25•       Non-coronagraphic observations using filed stabilized observing mode.
    2926**Notes**
    3027