PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM SPACECRAFT_NAME = "LUNAR RECONNAISSANCE ORBITER" INSTRUMENT_NAME = "LYMAN ALPHA MAPPING PROJECT" TARGET_NAME = MOON OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2019-08-28 NOTE = "Comments on the LRO LAMP RDR Archive Volume" END_OBJECT = TEXT END Comments on the LRO LAMP RDR Archive Volume ============================================================================= Known Errors and Anomalies ========================== On 31-May-2011 (2011151) the LAMP high voltage and discriminator level settings were changed to 5.0kV and 1.05V, respectively. The version 04 RDR files included in this release contain improved radiometric calibrations due to this change. However, additional calibrations are needed on account of the opening of the failsafe door (see below). At 04:19:32 UTC on October 5, 2016 (DOY 279), the LAMP failsafe door was opened. This increased the total size of the instrument's light-admitting aperture by about 10% of the size of the airglow aperture. FITS files containing data taken after this LAMP configuration change are identified by the keyword "FAILSAFE" (with value = "T") in their primary headers. The changes in previously delivered version 03 RDR files to take account of this change have been backed out of the version 04 RDR files contained in this delivery. A better calibration for data taken after the failsafe door opening will be included in a future version of the RDR files. New File Additions ================== In this thirty-ninth data release, there are 1043 new RDR files supplied. Modifications to Existing Files =============================== None.