PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2016-05-06 NOTE = "Description of the CALIB directory contents for the MESSENGER XRS RDR PDS Archive" END_OBJECT = TEXT END The CALIB directory contains files used in the conversion from Calibrated Data Records (CDRs) to Reduced Data Records (RDRs). Included are the following files: CALINFO.TXT: The file you are reading. See the DOCUMENT directory for the EDR to CDR to RDR processing document, XRSEDR2CDR2RDR.*, which describes the conversion from Calibrated Data Records (CDRs) to Reduced Data Records (RDRs).