7. Data Processing Level: Derive_SPD

• 7.1 Overview
• 7.2 Ramp Processing
  • 7.2.1 Discarding destructive readouts
  • 7.2.2 Discarding disturbed non-destructive readouts
  • 7.2.3 Discarding data with OTF or OPF `off'
  • 7.2.4 Data identification and separation
  • 7.2.5 Determine chopper position and step number
  • 7.2.6 Conversion of digitised numbers to CRE output voltages
  • 7.2.7 Discarding saturated readouts
  • 7.2.8 Correction for non-linearities of the integration ramps
  • 7.2.9 Ramp deglitching
  • 7.2.10 Extraction of the signals and their uncertainties
• 7.3 Signal Processing: Staring PHT-P and PHT-C
  • 7.3.1 Reset interval correction
  • 7.3.2 Dark signal subtraction
  • 7.3.3 Correction for non-linear detector response of PHT-P and PHT-C
  • 7.3.4 Signal deglitching
  • 7.3.5 Transient correction
  • 7.3.6 Averaging signals of same instrument set-up
  • 7.3.7 Obtaining the median of all photo-currents
  • 7.3.8 Ramp statistics in SPD and Cal-A headers
• 7.4 Signal Processing: Staring PHT-S
  • 7.4.1 Dark signal subtraction
  • 7.4.2 Transient correction and calibration of signals
  • 7.4.3 Computation of the weighted mean flux
• 7.5 Signal Processing: Chopped PHT-P and PHT-C
  • 7.5.1 Processing overview for chopped observations
  • 7.5.2 Setting up data for generic pattern construction
  • 7.5.3 Generic pattern construction
  • 7.5.4 Determination of source signal
  • 7.5.5 Correction for chopped signal loss: Sky measurement
  • 7.5.6 Correction for chopped signal loss: FCS measurement
• 7.6 Signal Processing: Chopped PHT-S
  • 7.6.1 Obtaining the average signal per chopper plateau
  • 7.6.2 Separation of source and background signal
  • 7.6.3 Determine the signals averaged over a measurement
  • 7.6.4 Spectral response function corrected for chopped signal losses
  • 7.6.5 Determination of source and background spectrum
• 7.7 Signal Processing: PHT32 Raster Maps
  • 7.7.1 Obtaining the average signal per chopper plateau
  • 7.7.2 Correction for chopper vignetting
• 7.8 Signal Processing: PHT-S Raster Maps
  • 7.8.1 Obtaining the average signal per raster point
  • 7.8.2 Determination of the spectrum per raster point
• 7.9 Signal Processing: PHT04 Staring Multi-Aperture
  Photometry
  • 7.9.1 Sorting out eligible PHT04 observations
  • 7.9.2 Analysis of the background subtracted source signal
  • 7.9.3 Summary of SPD warning messages for PHT04
• 7.10 In-band Power Calibration
  • 7.10.1 Default responsivities
  • 7.10.2 Determination of in-band power from FCS measurement
  • 7.10.3 Signal to in-band power conversion for P detectors
  • 7.10.4 Signal to in-band power conversion for C detectors
  • 7.10.5 In-band power for PHT-P and PHT-C chopped observations
  • 7.10.6 In-band power for raster and sparse maps
  • 7.10.7 Dependencies on mission dates
• 7.11 Ancillary SPD Data
  • 7.11.1 FCS measurements
  • 7.11.2 PHT-S dark measurement
  • 7.11.3 Dark signal measurement
  • 7.11.4 FCS straylight measurement
• 7.12 Quality Flags for SPD Records