VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BU026A Observer: Ulvestad, J.S. Project type: VLBA Obs filename: bu026acrd.* Date/Day: 2003AUG27/239 Ants Used: 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: -0.35 0851 File begins at all sites except SC. 0858 Start at SC. 0904 All readbacks are okay. 0910 %PT Precipitation starting. 1000 MK Readback okay. 1019 All readbacks are okay. 1105 %KP Bad readback drive #2, track 20. All other site readbacks are okay. 1144 %KP Bad readbacks drive #2, tracks 12 and 20. All other site readbacks are okay. 1202 Readacks okay. 1204-1205 *HN AZ not reaching command position. ACU 100 1 Reset AZ. 1224 SC WEA: Hazy, dry dish, no precipitation. 1226 HN WEA: Clear, no precipitation. 1303 All readbacks are okay. 1335 WEA: Webcam Update. NL and OV are clear. FD - High thin clouds. LA and PT - High scattered/broken clouds. KP - Low heavy clouds. MK - Dark. 1402 All readbacks are okay. 1410 New Op. D. Medcalf. 1425 All readbacks okay except KP2 track 20. 1519 All readbacks okay. 1722 All readbacks okay. 1800 Webcam weather: NL, OV, MK mostly clear. SC, HN, FD, LA, PT, BR partly cloudy, KP mostly cloudy. 1902 All readbacks okay. 1917 PT and KP are overcast with heavy, dark clouds. 1921-1922 Speaking of which, PT just autostowed. WEA 100 1 1925-1943 *PT autostowed two more times. Will leave stowed for WEA 100 18 awhile. 2009 %KP reports fog and light rain. 2010-2014 *PT autostowed. WEA 100 4 2028 %KP reports fog and moderate rain. Accumulation is about 1/2 inch. 2118 Readback check ok 2120 New operator: T. Perreault 2220 Readback check ok 2251 Readback check ok 2322 MK readback check ok 2330-2354 *FD autostowed. Power glitch. Will leave it out for WEA 100 24 a bit to see if there are any further power fluctuations. 2347 Readback check ok 2348-2349 *OV had AZ#1 armature overcurrent error message. ACU 100 1 Cleared by momentarily disabling AZ axis. 0000 Date is 2003AUG28/240. 0006 Readback check ok 0033 Readback check ok 0054 Readback check ok 0115 Readback check ok 0200 Readback check ok 0220 Readback check ok 0313 Readback check ok 0320 Readback check ok 0341 Readback check ok 0411 Readback check ok 0443 KP bad readback drive 2 tracks 12,20; All other sites ok 0540 New operator is Dave Pierce. 0612 All readbacks are okay. 0619 FD,KP,OV Readbacks are okay. 0640 All readbacks are okay. 0746 All readbacks are okay. 0834 MK File ends. 0851 End. Downtime Summary: Total downtime : 49 min Percentage downtime of observing: 0.3% Average downtime per hour : 0.2 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.