PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT NOTE = "Errors in the LCROSS PDS Archive" PUBLICATION_DATE = 2010-04-07 END_OBJECT = TEXT END LCROSS PDS Archive Errata ############################################################################## ############################################################################## Missing data for The LCROSS Total Luminance Photometer (TLP) Calibration The calibration process mapping raw data numbers to temperature-normalized voltage is described in the LCROSS Instrument Calibration Summary, Section 9, however, there is insufficient data in the volume to repeat this calibration. The missing information is the spacecraft clock value for each data number. The TLP data products contain only corrected UTC times, but the files containing detector temperature contain spacecraft times, so these cannot be correlated exactly. The temperature changed slowly relative to the difference between these clocks, so the calibration could be repeated approximately. The simplest way to fix this omission is to addthe spacecraft clock to either the raw or calibrated data product or both. ############################################################################## ##############################################################################