Sector 19



× Sector 19 was reprocessed in September 2020, updating timestamps, photometric apertures, data anomaly flags, and threshold crossing events. For more deatil please see the Reprocessing Information table below.
× Warning for Sector 19: In orbit 46—no data were collected for four minutes due to an instrument reset. The FFI timestamps for Sector 19 do not account for the 0.5 second staggered readouts of the four cameras. The offsets for each camera can be added to the TSTART and TSTOP header values in the FFIs to correct the issue.

Sector 19 Information

For full data release notes see: DRN26, DRN30 (reprocessing). For a list of TIC IDs with noted issues, see this list.

Update: The FFI timestamps for Sector 19 do not account for the 0.5 second staggered readouts of the four cameras. The offsets for each camera can be added to the TSTART and TSTOP header values in the FFIs to correct the issue.

Sector Summary

  • Sector dates: November 28 to December 23 2019
  • Pointing: Northern hemispher
  • Days of Science Data Collection: 24.10
  • Days of Paused Data Collection: 0.97



    • Spacecraft Pointing (deg)

    RA dec roll
    Spacecraft 60.2 76.23 19.65
    Camera 1 75.35 40.85 96.07
    Camera 2 69.59 64.62 100.76
    Camera 3 1.54 85.31 347.82
    Camera 4 270.0 66.56 78.4



    Orbit Summary

    Orbits Dates (UTC)

    Start - End

    		 Cadence #

    Start - End

    		 Momentum dumps
    45 2019-11-28 - 2019-12-10 423808 - 432387 Every 5.0 days
    46 2019-12-11 - 2019-12-23 433083 - 441859 Every 5.25 days



    Sector Notes

    Noted Issue Description
    Instrument reset An instrument reset occurred in orbit 46—no data were collected for four minutes between TJD 1838.73169 and 1838.73586.
    Spacecraft pointing Camera 1 and Camera 4 were both used for guiding in orbits 45 and 46.
    Scattered light In Sector 19, there is an increase in the background levels at the end of each orbit due to the Earth, and a smaller affect due to the Moon at the start of orbit 46.



    Reprocessing Information: DRN30

    The data products of sectors 14 to 19 were generated using version 4.0 of the science processing pipeline and conform to the final set of data anomaly flags. A detailed description of the changes in the data products can be found in DRN30, but a summary is provided here.

    Update Description
    Timestamps: For 2 minute cadence and FFI data the timestamps were made more accurate. The differences between reprocessed data and previous data releases are less than 2.0 seconds in all cases.
    Photometric apertures: The apertures were increased in size for targets with Tmag less than 11.
    Data Anomaly Flags: Three new flags were added to mitigate the effects of scattered light;

    - Cadences with strong scattered light signals or saturation effects that corrupt the calibration data are flagged and removed from analysis.

    - Scattered light data anomaly flags are customized for each target, and flagged automatically based on the local background level.

    - Cadences with insufficient targets to derive cotrending basis vectors are flagged and the PDCSAP FLUX light curves are set to NULL at these times

    The modifications to the data anomaly flags also changed the cotrended light curves produced by PDC. The changes also result in new cotrending basis vectors for each CCD in each sector. The scattered light flags are now only applied to the PDCSAP FLUX light curves.
    Threshold Corssing Event issue: The planet search of the reprocessed light curves produced a different set of TCEs from the original processed data. Although there is a high degree of overlap between the original and reprocessed data (∼83% of targets produced TCEs in common), new TCEs were produced and not every TCE from previous data releases was recovered.