VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BJ046Q Observer: B. Junor Project type: VLBA Obs filename: bj046q Date/Day: 2004APR22/113 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Paul Dyer. VCLOCK, GPS Delta, and UT1-UTC check ok. 0140 Begin at all stations. 0140-1007 %NL TSMPLOTs show high and wildly varying INT 50 253 system temperatures on channels 1 and 2. Suspect RFI. 0140-1007 %LA TSMPLOTs show high and wildly varying INT 50 253 system temperatures on channels 3 and 4. Suspect RFI. 0140-1007 %MK TSMPLOTs show high and wildly varying INT 50 253 system temperatures on channels 1 and 2. Suspect RFI. 0140 *MK WEA: Raining. 0146 All readbacks ok. 0255 All readbacks ok. 0302 %FD Bad readbacks on drive 2, tracks 30-33. All others were ok. 0411 All readbacks ok. 0419 All readbacks ok. 0529 FD bad readback drive 2 tracks 26,28-33; all other sites ok 0537 New operator: T. Perreault 0752 SC observing ends 0828 HN observing ends 1007 End. Downtime Summary: Total downtime : 759 min Percentage downtime of observing: 15.0% Average downtime per hour : 9.0 min Total scheduled observing time (# Antennas): 5070 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.