VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BC120ES Observer: Chatterjee, S. Project type: VLBA Obs filename: bc120escrd.* Date/Day: 2004JUN23/175 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator: Phillip D. Hicks Showers FD and KP. Cloudy at NL and SC. Clear elsewhere 1723 Antenna pointed. Cuurrent time offset -0.47. VCLOCK OK: Highest value -0.126 at SC. 1733 All sites writing to tape. 1813-1818 *PT Dropped out of pointing. ACU 100 5 1838-1839 *LA Tech/McGoldbrick running test on drive #2 REC 100 1 and the system switched to drive 2. Some data written to recorder test tape. On above incident, McGoldrick says only the first 2500' of the first forward pass was overwritten. 1920 *PT Dropped out of pointing. Power? Downtime unknown. 1934 End. Downtime Summary: Total downtime : 6 min Percentage downtime of observing: 0.5% Average downtime per hour : 0.3 min Total scheduled observing time (# Antennas): 1310 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.