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Name Template: PUB/MISSION/level1b/leoDcb/leoDcb_YYYY.DDD_SSSS.VVVV_txt

DDDDay of year
MISSIONMission ID (eight characters or less--champ, champrt, sacc, sacctst, etc)
PUBBase directory for the pub hierarchy
SSSSSubtype (an ID which tells the command options used in generating this file)
VVVVVersion (an ID which tells the version of all codes using in generating thie file)

LEO receiver/antenna Differential Code Biases (DCB). Each file contains daily averages for the antennas for a given mission. The format follows the format that is used by the Astronomical Institute at the University of Bern (AIUB) to store daily P1-P2 GPS satellite and ground receiver DCBs. The estimation of the daily LEO DCBs are based on the daily GPS DCBs made available by AIUB