You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 16 Next »

PanSTARRS-1 data processing includes many steps to go from raw image data to the archived data products.  Those steps are summarized here, with additional pages for detailed descriptions as needed.


Information for this page should come from Magnier et al 2016. 


Parent page for the description of PSPS processing.

Planned contents:

  • Summary flowchart of data processing steps, decision points, and products.
  • Calibration algorithm summary:
    • Exposure calibration (detrending)
    • Initial astrometric calibration
    • Warps
    • Image combination (stacking)
    • Source detection
    • Flux calibration
    • Final astrometric calibration
  • Detrending (Chris Waters)
    • masking, overscan subtraction, nonlinearity, bias subtraction, flat field, fringe correction
  • Image stacking (Chris Waters)
    • seeing limits, PSF matching (or not)
  • Object detection (Eugene Magnier)
  • Flux calibration (Eugene Magnier)
  • Photometric zero points (Eugene Magnier / Eddie Schlafly)
  • Astrometric calibration of images  (Eugene Magnier) (Anton)
  • Extracted catalog photometry  (Eugene Magnier)
    •   PSF fits 
      • analytic function, residuals, field-of-view dependence, masked pixels, aperture corrections
      • -> PSF photometry
    • Forced Photometry
    • Extended object fits
    • Links to code
  • Ubercalibration (Scolnic, Schlafly, Finkbeiner)
  • Known limitations

  • No labels