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ICESat-2-SIPS-SPEC-1601
Revision - Draft
ix
Release Date TBD
4.1.2 LRS Instrument ........................................................................................ 21
4.1.2.1 LRS Application Mode ..................................................................................... 21
4.1.2.2 LRS Failsafe Mode ........................................................................................... 22
4.2 Spacecraft ....................................................................................................... 22
5.0 ALGORITHM IMPLEMENTATION ..................................................................... 23
5.1 Outline of Procedure ....................................................................................... 23
5.1.1 Input Variables ......................................................................................... 23
5.1.1.1 Parameters Required from ICESat-2 ................................................................ 23
Spacecraft Ancillary Science Data ............................................................................. 28
5.1.1.2 Parameters Required from Ancillary Sources ................................................... 33
5.1.1.3 Output Parameters ............................................................................................. 33
5.1.2 Processing Procedures ............................................................................ 34
5.1.2.1 L1A Geolocation ............................................................................................... 34
5.1.2.2 ATLAS Instrument ........................................................................................... 34
5.1.2.2.1 L1A processing algorithms ............................................................................... 34
5.1.2.2.2 L1A user guide notes ........................................................................................ 36
5.1.2.3 LRS Instrument ................................................................................................. 37
5.1.2.4 Spacecraft Data ................................................................................................. 38
5.2 Variance or Uncertainty of Estimates .............................................................. 39
5.3 Numerical Computation Considerations .......................................................... 39
5.3.1 Programmer/Procedural Considerations .................................................. 39
5.3.2 Calibration and Validation ........................................................................ 39
5.3.3 Quality Control and Diagnostics ............................................................... 39
6.0 DATA QUALITY AND BROWSE ........................................................................ 40
6.1 Data Quality .................................................................................................... 40
6.1.1 Packet checksum ..................................................................................... 40
6.1.1.1 Processing ......................................................................................................... 40
6.1.1.2 Quality Criteria ................................................................................................. 40
6.1.2 . Packet count .......................................................................................... 40
6.1.2.1 Processing ......................................................................................................... 40