VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BD121 Observer: Dougherty, S. Project type: VLBA Obs filename: bd121crd.* Date/Day: 2007APR21/111 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK Y =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Heidi Gerhardt GPS delta (NL 8.8us), UT1-UTC (-0.10), vclock ok WEA: KP high winds & chance of rain, SC & PT chance of rain. 0730 Begin 0730-0738 *KP wind stow, 55+ mph wind gusts WEA 100 8 1052 *KP precipitation starting 1111-1116 *KP autostowed, AZ/EL #1 flag, UPS on intverter ACU 100 5 for a moment. 1352 *KP precipitation turning into snow 1404 New Operator is Alan Kerr 1435 *KP Precipitation stopped. 1500 *KP precipitation starting. 1529-1729 *Y BBC5-8 low TotPwr. killing and launching a new DAS cleared the problem. data doesn't seem affected. 1653-1714 *KP out of point. repointed. FRM 100 21 1657-1804 Y has a red flashing c on the display. no obvious reason. 1708 *MK precipitation starting. 1717 *MK precipitation stopped. 1802 LA very windy. 61mph gust. 1836 Y red flashing c again. 1900-1906 *SC out of point. repointed. FRM 100 6 1907 *SC precipitation starting. 1923 End. Downtime Summary: Total downtime : 40 min Percentage downtime of observing: 0.5% Average downtime per hour : 0.3 min Total scheduled observing time (# Antennas): 7843 min (11) 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.