VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BW067M Observer: Walker, R.C. Project type: VLBA Obs filename: bw067mcrd.* Date/Day: 2003DEC12/346 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is D. Pierce. VCLOCK and GPS Delta check okay. UT1-UTC: -0.38 0828 File begins. %LA,KP WEA: Snowing. 0828-1148 %SC Air temperature and dew point readings 12992 100 200 are incorrect. Estimated value of refraction model will be off. 0828-1148 %MK Taking RFI, channels 1 and 2. 0831-1148 *HN Commercial power down, on generator. COM 100 197 0832 Readbacks are okay. 0836 %BR WEA: Snowing. 0912-0919 *LA Ran out of tape. HUERR 100 7 Site Tech Gene called out. 0930-1000 %KP Taking RFI. 0931 %LA WEA: Snowing,2" on everything. 0936 %SC WEA: Precipitation starting. 0943 Readbacks are okay. 0948 Readbacks are okay. 0954 Readbacks are okay. 1000-1105 %NL Taking RFI. 1107 Readbacks are okay. 1113 Readbacks are okay. 1139 Readbacks are okay. 1144 Readbacks are okay. 1144 SC Finishes observing. 1148 End. Downtime Summary: Total downtime : 404 min Percentage downtime of observing: 20.2% Average downtime per hour : 12.1 min Total scheduled observing time (# Antennas): 2000 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.