NSSDCA ID: PSPG-00148
Availability: Data Identified but not Received
These magnetic tapes supplied by the Radio Science Team, are merged and reformatted versions of the original project tracking tapes. Each record contains all or a subset of the following parameters: time, S-band Doppler frequency, X-band Doppler frequency, S-band range and X-band range (light time in nanoseconds), and certain tracking station information. Spacing between Doppler points is 1 min or less and between ranging points is from 5 to 20 min. For analysis of the Doppler and range tracking data from the Orbiters, two types of additional data are required: (1) Orbiter state vectors -- these are tabulations (usually daily) of the position and velocity vectors of the spacecraft in various coordinate systems, and (2) calendar of orbital maneuvers -- these are chronological listings of the times of Orbiter maneuvers. Propulsive maneuvers changed the spacecraft orbit discontinuously. Nonpropulsive maneuvers, which merely reoriented the Orbiter, are nevertheless clearly visible in the Doppler data. These two additional types of supporting data will be included with any request for these tapes. These data are available from J. Brinkle, Jet Propulsion Laboratory, 213-792-2273 or 213-792-7988.
Questions and comments about this data collection can be directed to: Dr. David R. Williams
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. William H. Michael, Jr. | Data Provider | NASA Langley Research Center | |
Dr. William H. Michael, Jr. | General Contact | NASA Langley Research Center |