VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BJ036F Observer: Jorstad, S.G. Project type: VLBA Obs filename: bj036fcrd.* Date/Day: 2004APR02/093 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Dave Pierce. VCLOCK and GPS Delta check okay. UT1-UTC: -0.44 0129 File begins. %HN is having sporatic internet communication dropouts. *HN WEA: Raining. *KP WEA: Raining. *OV WEA: Wind gusts in excess of 35 mph. Webcam Weather Update: SC,HN(Rain),NL - Dark. FD - Scattered high thin clouds. LA,PT,KP(Rain) - Overcast. OV - Partly cloudy/scattered cumulus. BR, MK - Clear. 0159 Readbacks are okay. 0231 Readbacks are okay. 0302 *LA Bad readback on Drive #2, track 2. All other site readbacks are okay. 0320 *LA WEA: Precipitation starting, rain. 0334 *PT Bad readback on Drive #1, track 14. All other site readbacks are okay. 0405 Readbacks are okay. 0436 Readbacks are okay. 0508 Readbacks are okay. 0519-0526 *HN Autostowed. El#1 armature over current. ACU 100 7 0539 Readbacks are okay. 0611 *LA Bad readback on Drive #2, track 2. All other site readbacks are okay. 0643 Readbacks are okay. 0645 New operator is Jim Ogle. 0702 %High wind gusts at FD. 0714 Readbacks okay. 0715-0716 *FD autostowed, commercial power glitch. Repointed. COM 100 1 0723-0724 *FD autostowed again. COM 100 1 0807 Readbacks okay. 0831 *HN bad readbacks on track 20, drive #2. Other sites okay. 0903 *HN bad readbacks on track 20. Other sites okay. 0934 Readbacks okay. 1028 Readbacks okay. 1051 Readbacks okay. 1122 Readbacks okay. 1154 Readbacks okay. 1225 Readbacks okay. 1246-1247 *FD autostowed, high wind gusts. Repointed. WEA 100 1 1252 *Raining at PT. 1301 SC reports clear skies. 1316 *HN reports overcast skies, low clouds, light rain/snow. 1342 Readbacks okay. 1351-1356 *BR drive #1 lost vacuum. Was able to reload tape REC 100 5 and resume writing data. 1416 Readbacks okay. 1426 *Raining at LA. 1431 *KP reports overcast skies, fog, light rain. 1437 New operator is Paul Dyer. 1538-1543 *PT Ran out of tape. Tech is there now and is HUERR 100 5 mounting another tape. 1545-1552 *PT Autostowed. Power glitch. COM 100 7 1623-1627 *PT FRM focus drive fault and 2nd screw fault. FRM 100 4 FRM not at commanded focus position. 1633-1635 *PT FRM focus drive fault and 2nd screw fault. FRM 100 2 FRM not at commanded focus position. 1649 *KP WEA: Wind gusts > 35mph. 1722 End. Downtime Summary: Total downtime : 33 min Percentage downtime of observing: 0.3% Average downtime per hour : 0.2 min Total scheduled observing time (# Antennas): 9530 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.