VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BR100DC Observer: M. Reid Project type: VLBA Obs filename: br100dccrd.* Date/Day: 2006JAN13/013 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Jim Ogle. HN writing to Mk5 disc pack OSOD-038 in bank A. FD writing to Mk5 disc pack WSRT-022 in bank B. LA writing to Mk5 disc pack NRAO-009 in bank A. KP writing to Mk5 disc pack NRAO-098 in bank B. BR writing to Mk5 disc pack OSOD-044 in bank B. %NL possibly some snow in dish. %Light rain at BR, possibly ice on dish. VCLOCK and gps delta checks okay. 1400 Begin. 1401-1417 *BR not recording, Mk5 unit reporting the disc REC 100 16 is slow. 1403 Readbacks okay. 1409 *BR tried resetting Mk5 by taking unit offline briefly, came back up with the troublesome disc listed as write-protected. 1410 *BR cleared write-protect status, now pack is being reported as full even though usage reads 0.00 GB. Will issue an erase command to clear this situation. 1411 Readbacks okay. 1416 Readbacks okay. 1417 BR now writing to Mk5 unit. 1419 Readbacks okay. 1423 Readbacks okay. 1428 Readbacks okay. 1431 Readbacks okay. 1436 Readbacks okay. 1439 Readbacks okay. 1442 Operator is Sonja Mendoza. 1444 Readbacks okay. 1447-1449 *PT FRM out of position, focus drive fault, FRM 100 2 focus 2nd screw fault. 1448 LA WEA: Site tech reports clear skies, dry. 1449 Readbacks okay. 1453 Readbacks okay. 1457 Readbacks okay. 1524 KP WEA: Site tech reports clear skies, dry. 1527 *BR WEA: Site tech reports lower half of dish has 1/4" wet snow. Overcast with low clouds/fog. 1605 OV WEA: Site tech reports clear skies, dry. 1608 *BR WEA: Precipitation starting. 1634 Readbacks okay. 1645 %NL Ending tape on REC #1 (VLBA0678) early, recorder techs think there may be a problem with this recorder (ended on pass 11, forward pass). Switching to REC #2. 1808-1824 *OV Site techs need to move a compressor, stowing OTHER 100 16 antenna. 1842 Readbacks okay. 1846 Readbacks okay. 1859 Readbacks okay. 1901 Readbacks okay. 1903 Readbacks okay. 1905 Readbacks okay. 1912 Readbacks okay. 1915 Readbacks okay. 1921 MK WEA: Site tech reports clear skies, dry. 1923 Readbacks okay. 1930 Readbacks okay. 1936 Readbacks okay. 1937 Readbacks okay. 2220 New operator: T. Perreault 2231 Readback check ok 2313 HN Mark5 recording bank B pack HART-021 2329 Readback check ok 2330-2333 *SC autostowed. Power glitch. Repointed. COM 100 3 2342 MK readback check ok 0000 Date is 2006JAN14/014. 0004 End. Downtime Summary: Total downtime : 37 min Percentage downtime of observing: 0.6% Average downtime per hour : 0.4 min Total scheduled observing time (# Antennas): 6040 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.