VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BC162 Observer: Cimo, G. Project type: VLBA Obs filename: bc162crd.* Date/Day: 2007FEB23/054 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK GB =UT-Time===Comment===============================================MF#===%AD==AMD= 1100 Begin file, MK joins later VCLOCK check ok. SC at -0.147 UT1-UTC check ok (-0.03) GPS delta < 10 us (NL: 8.5us / LA: -7.5 us) Operator: T. Perreault 1100-1500 *FD 4cm receiver warm. 19938 100 240 1205 MK joins 1332 FD wea: broken stratocumulus, no precipitation 1336 FD shutting down observing so site tech can work on the 4cm. 1343 %MK wea: snowing 1435 New Operator: Paul Padilla 1500 End. Downtime Summary: Total downtime : 240 min Percentage downtime of observing: 10.0% Average downtime per hour : 6.0 min Total scheduled observing time (# Antennas): 2400 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.