NSSDCA ID: XXNO-00574
Availability: Archived at NSSDC, accessible from elsewhere
This data collection contains archival raw, and ancillary/supporting radio science data for the First Cassini Gravitational Wave Experiment conducted during the Quiet Cruise subphase of the Cassini mission. These data are contained in ten Volumes (DVDs). The radio observations were carried out using the Cassini Spacecraft and Earth-based receiving stations of the NASA Deep Space Network DSN). Two types of measurements were obtained; these are known as closed-loop and open-loop recordings. The closed-loop system uses a phase-lock loop in the receiver to track the downlink signal, reporting both amplitude and frequency 10 times per second. In the open-loop system, the signal is simply converted to a baseband frequency range; the entire passband is sampled and recorded at 1000 samples per second. The data set includes three primary data types. Archival Tracking Data Files (ATDFs or TDFs) are the most primitive (and most voluminous) product of the closed-loop system. Orbit Data Files (ODFs) are compressed versions of ATDFs, specifically targeted to spacecraft navigators and scientists interested in gravity fields. Radio Science Receiver (RSR) files are the primary data type from the open-loop system. The data are held on PDS Volumes CORS_0001 to CORS_0010 and are available on-line from the Planetary Data System (PDS) at: http://pds-atmospheres.nmsu.edu/PDS/data/cors_0001/
Questions and comments about this data collection can be directed to: Dr. Edwin V. Bell, II
Name | Role | Original Affiliation | |
---|---|---|---|
Mr. Elias Barbinis | General Contact | NASA Jet Propulsion Laboratory | elias.barbinis-1@nasa.gov |