VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BM215C Observer: E. Middelberg Project type: VLBA Obs filename: bm215ccrd.* Date/Day: 2005FEB02/033 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. 1420 Begin at all stations. 1420 LA is writing Mark V disc pack NRAO-012 in bank B. 1427 All readbacks ok. 1433 All readbacks ok. 1450 Operator is Sonja Mendoza. 1450 WEA: SC,HN,LA,PT,KP,OV: Clear skies, no precipitation. 1450 WEA: FD,NL: Overcast skies. 1450 %WEA: MK Starting to snow. 1521 %WEA LA: Site techs report snow on 35% of dish surface. 1558 WEA: BR: Mostly overcast skies, dry. 1500-1600 Readbacks at 1522, 1530, 1537 UT all ok. 1558-1600 *PT Antenna not in point mode, probably due to COM 100 2 a power glitch. Repointed. 1600-1700 Readbacks at 1625, 1633 and 1640 UT all ok. 1759 %MK WEA: Precipitation starting. MK tsys 2x normal. 1700-1800 Readbacks at 1727 and 1735 UT, all sites ok. %BR Bad readback at 1741 UT, drive 1, track 23. All other sites ok. 1800-1900 Readbacks at 1836 and 1843 UT all ok. 1901-1907 *SC Site techs had to stow antenna to fix 1cm CRYO 100 6 dewar problem. 1931 All readbacks ok. 1940 All readbacks ok. 1947 All readbacks ok. 2018 *MK Weather: light snow falling. 2"-3" on ground. 2023-2102 *FD el.2 low lube pressure ACU 100 39 data is flagged, but should be OK 2106-2140 *SC out of point to fix generator problem GEN 100 34 2152-2154 *SC not pointing GEN 100 2 2201-2222 FD low lube ACU flag on - not a real problem but data may be flagged falsely. 2222 End. Downtime Summary: Total downtime : 83 min Percentage downtime of observing: 1.7% Average downtime per hour : 1.0 min Total scheduled observing time (# Antennas): 4820 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.