VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BC120BH Observer: S. Chatterjee Project type: VLBA Obs filename: bc120bhcrd.* Date/Day: 2003JUL27/208 Ants Used: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Jim Ogle. VCLOCK and gps delta check okay. %SC ACU being flagged with a faulty gearbox fault; antenna is actually operating correctly, data is not affected by this error. 1752 Begin. 1758 BR reports clear skies. 1825-1831 *FD autostowed, commercial power glitch? COM 100 6 1842-1843 *FD autostowed again. COM 100 1 1901 MK reports scattered cumulus and cirrus clouds. 1953 End. Downtime Summary: Total downtime : 7 min Percentage downtime of observing: 0.6% Average downtime per hour : 0.3 min Total scheduled observing time (# Antennas): 1210 min (10) Notes: * = Entries where data was affected. % = Entries where data may have been affected. & = Entries where the site tech was called out. WEA = Weather entries. MF# = Maintenance form or major downtime category associated with a problem. %AD = The percentage of an antenna affected by a problem. AMD = Total antenna-minutes downtime for a problem. Tsys = System Temperature (TP/SP x Tcal/2) ACU = Antenna Control Unit FRM = Focus/Rotation Mount RFI = Radio Frequency Interference VME = Site control computer CB = Circuit Breaker vclock = Program that compares site clock time to a standard.