======================================================= t2077.dat Number of records in file: 2816 Record 1: 1976 8 28 -- 20:30:00 obgrav = 80382.1 obmag = 0 cdm = 0 Record 2816: 1976 9 7 -- 17:30:00 obgrav = 80309.8 obmag = 0 cdm = 0 Min/Max observed gravity (milligals): 80.0 80395.7