Sector 21



× Warning for Sector 21: The FFI timestamps have been adjusted by ~0.5 seconds due to staggered readouts.

Sector 21 Information

For full data release notes see: DRN29. For a list of TIC IDs with noted issues, see this list.

Update: In Sector 21, the the FFI timestamps have been adjusted for the 0.5 second staggered readouts of the four cameras and the 0.02 second staggered readouts for individual CCDs within a camera. TSTART and TSTOP in the FFIs of previous sectors need to be adjusted for the readout offsets of each camera—see DRN 25 for additional details.

Sector Summary

  • Sector dates: January 21 to February 18 2020
  • Pointing: Northern hemispher
  • Days of Science Data Collection: 24.42
  • Days of Paused Data Collection: 0.93


  • Spacecraft Pointing (deg)

    RA dec roll
    Spacecraft 171.8 65.19 317.95
    Camera 1 143.64 33.45 70.32
    Camera 2 157.6 55.4 60.34
    Camera 3 199.06 72.3 202.43
    Camera 4 270.0 66.56 134.95



    Orbit Summary

    Orbits Dates (UTC)

    Start - End

    Cadence #

    Start - End

    Momentum dumps
    49 2020-01-21 - 2020-02-04 462941 - 472707 Every 6.25 days
    50 2020-02-05 - 2020-02-18 473374 - 482634 Every 6.5 days



    Sector Notes

     <div>
       <table class="table table-striped table-hover" style="max-width:90em;">
         <col style="width:20%">
         <col style="width:60%">
         <thread>
           <tr>
             <td style="vertical-align: middle;"><b>Noted Issue</b></td>
             <td style="vertical-align: middle;"><b>Description</b></td>
           </tr>
         </thread>
         <tr>
           <td>Instrument reset</td>
           <td>
              Occurred in orbit 50, no data collected for 2 min between TJD 1892.50598 and 1892.50875.
              </td>
         </tr>
         <tr>
           <td>Spacecraft pointing</td>
           <td>
              Camera 1 and Camera 4 were both used for guiding in orbit 49; Camera 4 alone was used for guiding in orbit 50.
           </td>
         </tr>
         <tr>
           <td>Scattered light</td>
           <td>
              In Sector 21, the Moon passes through the field of view of Camera 1 at the start of orbit 50, saturating the detectors. A strong glint also appears in Camera 2 during this time.
           </td>
         </tr>
       </table>