VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BP123A Observer: Perlman, E. Project type: VLBA Obs filename: bp123acrd.* Date/Day: 2005DEC15/349 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Brian Willard. 2133 Begin file Mark 5 recording status: HN bank A pack NRAO-085 FD bank B pack NRAO-134 LA bank B pack NRAO-031 PT bank A pack NRAO-151 KP bank B pack NRAO-091 MK bank A pack NRAO-137 WEA: overcast KP,BR,NL,PT. WEA: scattered clouds SC,HN,FD,OV. WEA: clear MK. WEA: snow on dish & ground HN,NL,BR. WEA: high winds MK. GPS Delta, Vclock, UT1-UTC values nominal all sites. 2133-0529 *BR: not fringing, data not usable. 17390 100 476 2136 Tsys values very good all sites. 2228 %BR: bad readbacks track 2 and 4, drive 1. Other readbacks ok. 2238 New operator is Jim Ogle. 2335 MK reports clear skies. 2348 OV reports overcast skies. 0000 Date is 2005DEC16/350. 0023 Readbacks okay. 0059-0355 *MK AZ#1 armature/electronics CB fault, possibly a 17379 100 176 blown fuse. Error doesn't clear when antenna is put in Standby, calling out site tech. 0104 &MK site tech on his way. 17379 0107 Stowing MK. 17379 0218 Readbacks okay. 0344 Pointing again at MK. 0408 %MK communications down. 0413 Readbacks okay. 0513 End at SC. 0529 End. Downtime Summary: Total downtime : 652 min Percentage downtime of observing: 13.7% Average downtime per hour : 8.2 min Total scheduled observing time (# Antennas): 4760 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.