VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BM247B Observer: Marscher, A. Project type: VLBA Obs filename: bm247bcrd.* Date/Day: 2006AUG10/222 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Anthony Sowinski. Vclock and gps delta okay. 0957 Begin (except at MK). 1019-1020 *NL Autostow. Commercial power problem? COM 100 1 1027 *NL Rain and high winds. 1027 Begin at MK. 1034-0153 *NL Power down, running on generator, autostowed. 18766 100 919 1037-1043 *MK persistant focus drive fault. FRM 100 6 1047-1050 *MK focus drive fault. FRM 100 3 1100 *NL Power still down, 7mm receiver is warming up. 18766 &Site tech is heading out to antenna. 1123 *NL Generator had overheated, but is now fixed. 18766 Other electrical problems persist. 1213 *Removing NL from observation. 18766 1215 NL power is back, site tech still working. 1244 *Raining at PT. 1303-1304 *PT Power glitch auto-stow. Repointed. COM 100 1 1322 *NL 7mm cryo will take quite a while to cool down, 18766 but everything else is working again. 1349 Operator is Sonja Mendoza. 1425-1450 *PT autostowed; probable power glitch. COM 100 25 1454 SC WEA: Site tech reports light scattered low clouds, dry. 1511 OV WEA: Site tech reports clear skies, dry. 1518 KP WEA: Site tech reports overcast skies, with low clouds, dry. 1548 New operator is Heidi Gerhardt. 1637-1641 *PT autostowed; problem with AZ/EL armature COM 100 4 electronics faults. 1643 %MK intermitent focus drive fault. 18767 1900 %KP report lightning in the distance and rain shortly 2050 *SC precipitation starting. 2102-2109 *PT autostowed, power glitch. COM 100 7 2110-2350 *PT autostowed, recurrent power glitches. Will leave COM 100 160 it out until the power situation improves. 2345 New operator is Jim Ogle. 0000 Date is 2006AUG11/223. 0033-0034 *PT autostowed, power glitch. Repointed. COM 100 1 0056-0057 *PT autostowed. Repointed. COM 100 1 0153 NL 7mm cryo has cooled down enough to be usable, restarting the schedule there. 0346 *Raining at LA. 0348-0350 *FD AZ#1 armature over current fault. Put antenna in ACU 100 2 standby to clear fault then repointed. 0507-0508 *PT autostowed, power glitch. Repointed. COM 100 1 0558 Operator is Anthony Sowinski. 0700-0957 *OV RFI(?) on channel 7. 12 21 0905-0906 *KP Autostow; repointed. COM 100 1 0948-0949 *LA Autostow, repointed. COM 100 1 0957 End. Downtime Summary: Total downtime : 1154 min Percentage downtime of observing: 8.0% Average downtime per hour : 4.8 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.