CADU-convert

CADU-convert is a Perl script to transform CADUs with various options:

  • Scramble/descramble;
  • Remove annotations;
  • Discard idle frames (on both scrambled and unscrambled data);
  • Strip CADUs into VCDUs;
  • split output per virtual channel;
  • automatically find sync markers (re-synchronize as often as necessary if data are damaged);
  • log synchronization errors and full frame counter sequence for further analysis.

The tool is compatible with Perl 5.12 and later Perl 5 versions, and does not require any Perl package beyond standard distribution.

Usage instructions are showed running the tool with no command line arguments. The latest version found below (4.1 Modified 29 June 2016) includes the following new features:

  • compatible with any CCSDS frame type (header format, data/Reed-Solomon block sizes);
  • has an option to specify which Satellite is the data source.

UTC2LONLAT and UTC2SWATH

The CRYOSAT2 and SMOS folder contain tools for computations specific to Cryosat-2 and SMOS missions respectively (UTC2LONLAT and UTC2SWATH).

INSTRUMENT COLLOCATION

The INSTRUMENT COLLOCATION tools calculate the collocation (overlap) opportunities between two instrument swaths over a region of interest within a certain time difference. Also provide the minimum and maximum time difference for the first revisit opportunity.

TRANSPONDER_PASS

TRANSPONDER_PASS is a set of tools to calculate the Cryosat-2 ground-track points for a given set of visibility time windows over a zone or transponder location as well as information associated to the point of closest approach within each pass over a transponder

PASS_TOOL

PASS_TOOL is a tool to compute the visibility passes of a given satellite within a given time interval from a given ground station.

ZONE_OVERPASS

ZONE_OVERPASS is a tool to calculate the visibility passes of a given satellite within a given time interval over a given zone or ground point.

GROUND_SITE_PASS

GROUND_SITE_PASS is a tool to calculate the visibility passes of a given satellite (currenly only for Sentinel-5P) within a given time interval over a given ground site. Additional information related to the ground site is calculated (distance to ground-track, Sun incidence angle)

 

 



Additional information