PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT NOTE = "Comments on the Mars Global Surveyor Science Sampler CD-ROM" PUBLICATION_DATE = 1998-06-26 END_OBJECT = TEXT END COMMENTS ON THE MARS GLOBAL SURVEYOR SCIENCE SAMPLER CD-ROM This document contains comments and errata concerning the MGS Science Sampler CD-ROM. 1. MOLA AEDR and PEDR Binary Files In the PDS labels for MOLA AEDR and PEDR binary files, some fields have values in lower case or mixed upper and lower case. All fields except descriptions should have upper case values. MOLA PEDR binary files have SFDU (Standard Formatted Data Unit) headers at the beginning of their embedded PDS labels, but they are missing the SFDUs that should appear between the end of the label and the beginning of the data. Future releases of MOLA PEDR binary files will contain SFDUs in both places. 2. TES Calibrated Radiance Files In the PDS labels for TES calibrated radiance files, two columns are labeled "SUB_SOLAR_LONGITUDE". The second one should be labeled "SUB_SOLAR_LATITUDE". Also, the keyword SOFTWARE_VERSION should be SOFTWARE_VERSION_ID, and its value should be upper case. 3. Context image for MOC product NA007306 The BROWSE/MOC directory contains a context image for each of the nine MOC images on this volume. The context images were made from Viking MDIM data and include an outline showing the location of the MOC image in the scene. All the context images were generated by the PDS Geosciences Node except for N007306F.GIF, which was supplied by the MOC Instrument Team. Map projection information for this context image was unavailable, so several fields in the PDS label for this image have the value "UNKNOWN" or "UNK".