Satellite Doppler Range-Rate Measurements with Ground Beacon Meteorological Data

DORIS data records contain time-tagged range-rate measurements from satellite receivers tracking a global network of ground beacons. Ancillary information includes corrections for ionosphere, troposphere, and satellite center of mass, plus co-located meteorological measurements like temperature and ground pressure. The NASA Crustal Dynamics Data Information System (CDDIS) archives and distributes these multi-day files.

Use Cases

• Calibrate satellite orbit models using the time-tagged range-rate measurement and satellite center of mass correction data.
• Model tropospheric delay by analyzing the relationship between range-rate measurements and co-located meteorological measurements like ground pressure and relative humidity.
• Study ionospheric effects on radio signals by applying and comparing the ionospheric correction data within the records.
• Validate global positioning systems by processing the dual-frequency Doppler data from the network of ground beacons.

Strengths

• Data includes applied corrections for major error sources like ionosphere and troposphere.
• Contains co-located meteorological measurements (e.g., temperature, pressure) from ground beacons for environmental modeling.
• Derived from a globally distributed network of ground beacons, providing wide spatial coverage.

Limitations

• Specific temporal coverage, row count, and file size are unknown from the provided description.
• Data granularity and completeness for individual beacon stations are unspecified.

Provenance

Source

NASA Crustal Dynamics Data Information System (CDDIS).

Collection Method

Generated by DORIS receivers on orbiting satellites tracking dual-frequency radio signals from a global network of ground beacons.

Geography

Global, from a network of ground beacons.