VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BW062B Observer: A. Wehrle Project type: VLBA Obs filename: bw062bcrd.* Date/Day: 2003AUG17/229 Ants Used: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Jim Ogle. VCLOCK and gps delta check okay. 1335 Begin at all sites except PT and MK; PT is currently participating in PT-link observation AH776 and will be joining this observation when that concludes. MK begins later. 1345 New operator Cyrus M Reed. 1400 WEA: SC,HN,OV webcam not updating. WEA: NL,FD,LA,PT,KP,BR Clear skies. WEA: MK Unavailable (night). WEA: No recent precipitation at any site. 1419 All readbacks OK. 1446-1458 *MK was due to start at 1446, but it appears that SW 100 12 the VME hung on starting the file. There was no indication of the file coming up at all, other than vldis showing a loss of comm 2min before the file was due to run. There was no "Antenna not in POINT mode" message. Symptoms were otherwise the same as seen previously, no ACU data in SCREENS, etc. The reboot command (via rlogin) also failed, requiring the use of the sensaphone to reboot the VME. 1458 MK now observing and on source. 1504 All readbacks OK (except MK - none scheduled). 1511 MK readbacks OK. 1550 All readbacks OK (except FD - none scheduled). 1635 All readbacks OK. 1647-1648 *KP EL #2 armature over current. Cleared with ACU 100 1 disable/enable of axis. 1727-1747 *BR is out of tape - site tech is on his way to HUERR 100 20 change tape. 1805 *LA bad readbacks: Drive 1, ODD Tracks 03-17. 12187 All other readbacks OK (all sites). 1850 *LA bad readbacks: Drive 1, ODD Tracks 03-17. 12187 All other readbacks OK (all sites). 1900 PT now observing and on source. 1908-1942 %SC WEA: Precipitation. 1936 *LA bad readbacks: Drive 1, ODD Tracks 03-17. 12187 All other readbacks OK (all sites). 2021 *LA bad readbacks: Drive 1, ODD Tracks 03-17. 12187 All other readbacks OK (all sites). 2106 *LA bad readbacks: Drive 1, ODD Tracks 03-17. 12187 All other readbacks OK (all sites). 2124-2224 %LA WEA: Precipitation. 2130 WEA: SC,HN,OV webcam not updating. WEA: NL,BR Clear skies. PT Overcast /w low clouds. WEA: FD,LA,KP,MK Partly cloudy. (15%,15%,70%,80%) WEA: Recent precipitation at SC,LA. Other sites dry. 2134 SC readbacks OK. 2143 SC readbacks OK. 2152 *LA bad readbacks: Drive 1, ODD Tracks 03-17. 12187 All other readbacks OK (all sites). 2202 SC readbacks OK. 2211 SC readbacks OK. 2219 SC finished observing. 2235 End. Downtime Summary: Total downtime : 33 min Percentage downtime of observing: 0.6% Average downtime per hour : 0.4 min Total scheduled observing time (# Antennas): 5400 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.