This directory contains the Radio Science Original Data Records (ODR's) for occultation seasons 1 through 4 containing passes 210, 216, 239-242, 246-250, 252-253, 255 orbits 11, 17, 39-42, 47-54 which covers the time period 1978-12-15 to 1978-12-21 and 1979-01-12 to 1979-01-27. The data files are organized as single occultation events which are byte-for-byte dumps of the ODR tapes provided by the DSN. The naming convention for each file follows the tape labeling convention ODRXXXX.ODR where the "XXXX" is the tape label number. Every data file has an associated PDS label file which describes the data file. The format of the data files is described in the file ODR_FMT.TXT which is an ascii text version of the NASA document 820-13; Rev A, RSC 11-9 "DSN System Requirements Detailed Interface Design" Also available in the DOCUMENT directory off the root of this disk is a TIFF version of the original document (1 TIFF file per document page). The DOCINFO.TXT file explains the various methods of viewing the TIFF files. In addition to the data and label files there is an index file which contains information from the exterior tape label. The fields in this file include the following: file name day of year SC_ID DSS Number (DSS) Orbit Number Pass Number Start Time Stop Time Reel Number comments