VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BM256D Observer: Marscher, A. Project type: VLBA Obs filename: bm256dcrd.* Date/Day: 2007AUG30/242 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Betty Ragan Vclock, UT1-UTC, gps delta all OK. 0839 Begin. 1224 FD reports clear, dry weather. 1345 New Operator is Heidi Gerhardt 1511 %OV AZ #1 arm overcurrent ACU 1517-1518 *OV put into standby to clear acu fault ACU 100 1 1630-1632 *PT ACU faults ACU 100 2 1726-1731 *PT header control module error, HC1 FIFO error, FMTR 100 5 backplane 1PPS marker detected, FIFO 3, 2, 1 1PPS detected. Was able to clear FIFO errors. 1736 OV AZ #1 arm overcurrent, may be due to bad weather in the area. 1745-1747 *OV put into standby to clear acu fault ACU 100 2 1843-2034 *HN site techs report a strange noise coming from ACU 100 111 the AZ#1 wheel assembly. Parking antenna so they can investigate. 1852 *OV 35+ mph wind gust caution 1916-1918 *SC autostowed, power glitch COM 100 2 2011-2030 *LA autostowed, AZ/EL #2 arm/elec CB fault ACU 100 19 blown fuse being fixed 2034-0839 *HN taken out due to damaged AZ axle ACU 100 725 2058 *FD raining 2140 New Operator is Alan Kerr 0000 Date is 2007AUG31/243. 0016 *PT cleared FIFO. do not know when it started. 0018-0021 *OV out of point. COM 100 3 0303 SC precipitation starting. 0600 New operator is Betty Ragan. 0720-0721 *FD focus brake fault. Needed master clear. FRM 100 1 0839 End. Downtime Summary: Total downtime : 871 min Percentage downtime of observing: 6.0% Average downtime per hour : 3.6 min Total scheduled observing time (# Antennas): 14400 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.