VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: C051A Observer: T. Krichbaum Project type: VLBI Obs filename: c051acrd.* Date/Day: 2005APR15/105 Ants Scheduled: 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. 1156 Begin at NL. 1200 NL is writing Mark V disc pack MPI-0160 in bank A. 1257 Begin at BR. 1300 BR is writing Mark V disc pack MPI-0157 in bank A. 1336 New operator is Brian Willard. 1340 LA writing MkV, UAO-0012, bank A. PT writing MkV, NRAO-000, bank A. FD writing MkV, MPI-0150, bank A. 1340-0525 LA - 3mm intermittant bad cal - data OK, but FE tsys may be artificially higher than expected.. 1400 KP writing MkV, NTO-0013, bank A. 1420 OV writing MkV, MPI-0153, bank A. 1509 WEA: clear PT,KP,OV. WEA: scattered clouds NL,FD,LA. WEA: overcast BR. 1620 WEA: scattered clouds MK. 1704-1708 KP - power glitch COM 100 4 1737 MK begins recording on NTO-0008 Bank B 1737-2212 MK data flagged due to bad anemometer, but data actually OK - do not apply MK flag data 2058 WEA: overcast with rain likely BR. 2140 New operator: T. Perreault 2209-2212 *MK not pointing. Site tech installing new M106 15933 100 3 module to clear false ACU flagging error. 0000 Date is 2005APR16/106. 0038 LA wea: 35 mph wind gusts. Pointing will be affected. 0240 FD site tech heading out to the site. The servo 15974 drive cabinet temperature is just above the upper limit (39.06 C), and the Pedestal room air temp is at 29.93 C. The Ped Rm Air Conditioner may have shut down. 0303 FD site tech reports that the main air conditioner unit in the Ped Rm has died. He has the standby running and the Ped Rm should start to cool down. He will remain there until the Ped Rm cools off. 0354 FD site tech has left site. 0555 Operator is Sonja Mendoza. 0702 *MK WEA: precipitation starting. 1001 *BR WEA: precipitation starting. 1300 WEA: KP: Clear skies. WEA: NL: Overcast skies. WEA: FD: Partly cloudy, high thin clouds, dry. WEA: LA: Cloudy but clearing, dry. WEA: BR: Overcast skies, wet. 1322 MK writing to MkV, MPI-0161, bank A. 1345 New operator is Brian Willard. 1846-1847 *PT: autostow, repointed. COM 100 1 1923-1925 *PT: autostow, repointed. COM 100 2 1952-1955 *PT: autostow, repointed. COM 100 3 2115 WEA: overcast NL,LA,BR. WEA: clear PT,KP,OV. WEA: scattered clouds FD. WEA: broken clouds MK. 2149-2151 *PT: autostowed, repointed. COM 100 2 2222-2224 *PT: autostowed, repointed. COM 100 2 2301 WEA: high winds LA. 2301-2305 *PT: autostowed, repointed. COM 100 4 2306 WEA: rain LA. 2318-2321 *PT: autostowed, repointed. COM 100 3 0000 Date is 2005APR17/107. 0117-0119 *PT: autostowed, repointed. COM 100 2 0122-0123 *PT: autostowed, repointed. WEA 100 1 0130 WEA: overcast PT. 0133-0135 *PT: autostowed, repointed. WEA 100 2 0147 Operator is Sonja Mendoza. 0200 OV writing on MKV, MPI-0154, bank B. 0936 *FD WEA: precipitations starting. 1315 WEA: NL,KP: Clear skies, dry. WEA: FD: Overcast skies and wet. WEA: LA: Heavy fog. WEA: BR: Partly cloudy and clearing, dry. 1345 New operator is Brian Willard. 1620-1622 *PT: autostowed, repointed. COM 100 2 1626-1630 *PT: autostowed, repointed. COM 100 4 1705 WEA: overcast OV. 0000 Date is 2005APR18/108. 0051 WEA: clear NL,LA,PT,KP,OV,BR,MK. WEA: scattered clouds FD. 0147 Operator is Sonja Mendoza. 0525 End. Downtime Summary: Total downtime : 35 min Percentage downtime of observing: 0.1% Average downtime per hour : 0.1 min Total scheduled observing time (# Antennas): 31432 min (8) 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.