VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BK103C Observer: A. Kemball Project type: VLBA Obs filename: bk103ccrd.* Date/Day: 2003DEC23/357 Ants Scheduled: HN NL FD LA PT KP OV MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Jim Ogle. VCLOCK and gps delta checks okay. %FD and KP high wind gusts. 0532 Begin at all sites except MK, which begins later. 0532-0534 *OV EL brake fault. Temporarily disabled the EL ACU 100 2 axis to clear error then re-enabled the axis to resume pointing. 0614 All readbacks OK. 0615 Begin at MK. 0645 New operator Cyrus M Reed. 0654 All readbacks OK. 0735 All readbacks OK. 0815 All readbacks OK. 0830 %PT: VLDIS is showing comm dropping intermittently - but access to VME with SCREENs is fine. 0855 *LA bad readback: Drive 2, Track 20. All other readbacks OK. 0922 *PT tSuper error: "tLdsched not running - will restart". Observe file reloaded. No other errors. 0931 *PT identical errors as above. 0935 *MK bad readback: Drive 1, Track 02. All other readbacks OK. 1004 HN readbacks OK. 1015 *NL bad readback: Drive 1, Track 28. All other readbacks OK. 1056 *NL bad readback: Drive 1, Track 28. All other readbacks OK. 1104-1105 *KP BBC1 "Frequency does not match observation" - BBC 100 1 re-read current scan to fix. 1119 SC WEA: Reports light scattered low clouds, dry. 1126 End. Downtime Summary: Total downtime : 3 min Percentage downtime of observing: 0.1% Average downtime per hour : 0.1 min Total scheduled observing time (# Antennas): 2832 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.