VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: MT533 Observer: Analysts, Data Project type: TEST Obs filename: mt533crd.* Date/Day: 2005AUG16/228 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= 0803 Begin file HN recording Mk5 bank A pack NRAO-104 FD recording Mk5 bank B pack NRAO-134 LA recording Mk5 bank B pack NRAO-012 PT recording Mk5 bank B pack NRAO-091 KP recording Mk5 bank B pack NRAO-106 MK recording Mk5 bank B pack NRAO-056 VCLOCK check ok. SC at -0.155 UT1-UTC check ok (-0.60) GPS delta < 10 us Operator: T. Perreault 0803-0805 *SC subfreflector will not move in ROTATION at all. FRM 100 2 Have attempted several MASTER CLEAR resets and re- loading of the current observation scan. Each time the DRIVE MOTOR STATUS will go into inverse video and there is a ROTATION MOTION ANALYSIS FAULT coupled with a ROTATION FOLDBACK FAULT. Did another MASTER CLEAR reset and reloaded current observation scan, subreflector moved in ROTATION to commanded value. Will monitor. 0811 Readback check ok 0827 Readback check ok 0843 Readback check ok 0848-0934 *SC not recording. No tape available on recorder. HUERR 100 46 Ran out of tape on recorder 1, no tape available on recorder 2. Pulled station from observ.tx and rebooted station VME to stop observing. By the time the site tech could arrive and mount tape the project would be all but done. 0859 Readback check ok 0924 Readback check ok 0934 End. Downtime Summary: Total downtime : 48 min Percentage downtime of observing: 5.3% Average downtime per hour : 3.2 min Total scheduled observing time (# Antennas): 910 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.