NASA CDDIS provides orbit products for satellites equipped with DORIS receivers, derived from dual-frequency Doppler tracking data. The International DORIS Service (IDS) Analysis Centers compute these products from a globally distributed network of ground beacons. Orbit solutions are available in SP1 or SP3 formats.
Use Cases
- Precise orbit determination using time-tagged range-rate measurements from DORIS beacons.
- Analyzing satellite trajectory data in SP3 format for geodetic reference frame studies.
- Calibrating other satellite tracking systems by comparing DORIS-derived orbit solutions.
- Studying temporal changes in satellite orbits using the ancillary information recorded with each Doppler measurement.
Strengths
- Data sourced from a globally distributed network of ground beacons.
- Products generated by International DORIS Service (IDS) Analysis Centers.
Limitations
- Specific row counts, temporal coverage, and data volume are not provided.
- The availability of ancillary information columns is unspecified.
Provenance
- Source
- NASA Crustal Dynamics Data Information System (CDDIS) and the International DORIS Service (IDS).
- Collection Method
- Derived from dual-frequency Doppler signals transmitted by ground beacons and received by satellite-borne instruments.
- Time Range
- null
- Freshness
- null
- Geography
- Global, via a network of ground beacons.