PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM SPACECRAFT_NAME = "MARS GLOBAL SURVEYOR" TARGET_NAME = "MARS" OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 1999-01-15 END_OBJECT = TEXT END MGSC_0001: Image AB-1-018/03 was only partially contained in the packets archived on CD-ROM by the MGS Project. A version based on data retrieved on 10/10/1997 from the JPL telemetry system contained nearly a megabyte of additional image data. We have archived the image derived from these additional packets as well as the packets that are on the CD. We suspect a bug in the JPL "besting" algorithm or in the process which archived the packets. The affected CD file is for year 1997, day 284, hour 12. MGSC_0002: Images AB-1-069/01 and AB-1-072/01 did not have all C-kernel (pointing) information available and were assumed to be nadir-pointed. Images AB-1-069/07 and AB-1-075/06 have complex geometry with respect to the south pole which exposed a bug in the calculation of the USAGE_NOTE; in both cases the flag should be "N". MGSC_0003: Images AB-1-109/01, AB-1-109/02, AB-1-109/03, AB-1-109/04, AB-1-109/05, AB-1-135/01, AB-1-135/02, AB-1-135/03, AB-1-135/04, AB-1-135/05, and AB-1-135/06 did not have all C-kernel (pointing) information available and were assumed to be nadir-pointed and +X forward. For these orbits the spacecraft was oriented +X backward (with its +X axis against rather than with the velocity vector), so the USAGE_NOTEs should be inverted in all cases and the corner coordinates similarly flipped left-to-right. Image AB-1-103/05 has complex geometry with respect to the south pole which exposed a bug in the calculation of the USAGE_NOTE; the flag should be "N". General: As of the production of this volume, there were no known general errata.