VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BK133C Observer: Kovalev, Y.Y. Project type: VLBA Obs filename: bk133ccrd.* Date/Day: 2007AUG03/215 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= 1555 Begin file VCLOCK check ok. BR at -0.242 (ping 0.844 second) UT1-UTC check ok (-0.16) GPS delta < 10us (MK: -8.2us) Operator: T. Perreault 1555-2255 SC weather station temperature and dew point 20873 not recording correctly; estimated value of refraction model will be off. 1555-2255 *BR 1cm receiver pulled. No data at this band. 20964 17 71 1604 MK joins 1938 HN wea: site tech reports a severe thunderstorm is heading directly at the site... 2033 FD wea: update - thunderstorm with rain 2 miles south of site 2100 KP wea: broken low clouds, no precipitation 2124-2128 *PT autostowed. Power glitch. Repointed. COM 100 4 2149 New operator is Jim Ogle. 2149-2150 *SC rotation position error. FRM 100 1 2205-2206 *PT autostowed, commercial power glitch. Repointed. COM 100 1 2217-2218 *PT autostowed, power glitch. Repointed. COM 100 1 2216-2220 *SC rotation motion analysis fault. FRM 100 4 2216-2217 *BR rotation position error. FRM 100 1 2236-2238 *FD and BR rotation position errors. FRM 200 4 2241-2242 *PT autostowed. Repointed. COM 100 1 2255 End. Downtime Summary: Total downtime : 88 min Percentage downtime of observing: 2.1% Average downtime per hour : 1.3 min Total scheduled observing time (# Antennas): 4200 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.