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8 Data Processing Level: Derive_AAR  

• 8.1 Overview
• 8.2 PHT auto analysis processing per AOT
  • 8.2.1 PHT03
  • 8.2.2 PHT04
  • 8.2.3 PHT05
  • 8.2.4 PHT17/18/19
  • 8.2.5 PHT22
  • 8.2.6 PHT25
  • 8.2.7 PHT32
  • 8.2.8 PHT37/38/39
  • 8.2.9 PHT40
• 8.3 Common processing steps
  • 8.3.1 Read SPD header
  • 8.3.2 Read SPD record
  • 8.3.3 Determine celestial coordinates of each pixel in record
  • 8.3.4 Determination of the equatorial offsets of the detector centre
• 8.4 Photometry
  • 8.4.1 Sorting out chopper plateaux
  • 8.4.2 Separation of source and background in-band power
  • 8.4.3 Determine the in-band powers averaged over a measurement
  • 8.4.4 Staring mode
  • 8.4.5 Determine the mean off-source background
  • 8.4.6 Empirical correction for signal losses in chopped measurements
  • 8.4.7 Summation of the in-band powers of all detector pixels
  • 8.4.8 Fit two-dimensional Gaussian to point sources in the C-arrays
  • 8.4.9 Convert in-band power to point source flux density
  • 8.4.10 Convert in-band power to surface brightness
  • 8.4.11 Write PHT-P point source photometry product
  • 8.4.12 Write PHT-P extended source or raster photometry product
  • 8.4.13 Write PHT-C point source photometry product
  • 8.4.14 Write PHT-C extended source or raster photometry product
• 8.5 Mapping
  • 8.5.1 Establish image pixel size
  • 8.5.2 Establish maximum image size
  • 8.5.3 Determination of the coverage by a sky sample in the image
  • 8.5.4 Binning sky samples onto image pixels
  • 8.5.5 Write image products
• 8.6 Spectroscopy
  • 8.6.1 Write spectroscopy products