VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BL111K Observer: M. Lister Project type: VLBA Obs filename: bl111kcrd.* Date/Day: 2004FEB11/042 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Paul Dyer. VCLOCK, GPS Delta, and UT1-UTC check ok. 0618 Begin at all stations except SC and HN. 0618 NL Dish appx. 40% covered with snow/ice at last report. 0625 HN Begin. 0620 New operator: T. Perreault 0632 SC joins 0640 Readback check ok 0800 Readbacks this past hour ok at all sites 0900 Readbacks this past hour ok at all sites 1000 Readbacks this past hour ok at all sites 1048-1055 *PT EL tracking error of over 1 degree at around ACU 100 7 12 degrees. Source 0529+483 1100 Readbacks this past hour ok at all sites except: PT bad readback drive 2 track 3 at 1012 UT 1154 SC wea: broken low clouds, no precipitation 1200 Readbacks this past hour ok at all sites 1245 Lew Serna called from AOC back gate, wanted the lock combination. 1300 Readbacks this past hour ok at all sites 1337 HN wea: clear, no precipitation 1400 Readbacks this past hour ok at all sites 1400-1448 Readbacks ok at all sites 1411 FD wea: fog, wet ground and dish 1448 BR wea: low overcast, patchy fog, no precipitation 1450 New operator Cyrus M Reed. 1455 *FD Bad readback: Drive 1, Track 32. 13420 All other readbacks OK. 1457 LA WEA: Reports scattered high clouds, dry. 1503 *BR Bad readback: Drive 1, Track 29. All other readbacks OK. 1511 *BR Bad readback: Drive 1, Track 25. *FD Bad readback: Drive 1, Track 32. 13420 All other readbacks OK. 1520 MK readbacks OK. 1528 *BR Bad readback: Drive 1, Track 25. All other readbacks OK. 1536 All readbacks OK. 1550-1552 *PT Focus drive/2nd screw faults. Cleared with FRM 100 2 master clear and re-read of current scan. 1551 All readbacks OK. 1608 BR,MK readbacks OK. 1616 All readbacks OK. 1640 MK readbacks OK. 1648 All readbacks OK. 1656 All readbacks OK. 1700 WEA: Cloud cover via webcam: WEA: SC,NL,PT,KP,OV,MK Clear skies. WEA: HN,FD Cloudy. (15%,85%) LA High haze. WEA: BR Low fog, damp. 1703 *FD Bad readback: Drive 1, Track 32. 13420 All other readbacks OK. All other readbacks OK. 1806 All readbacks OK. 1821 All readbacks OK. 1903 MK readbacks OK. 1931 %Bad readbacks on NL drive 1, tracks 25-33. However, this tape had just started its first pass. All other readbacks okay except PT1, track 4. 2000 WEA: Cloud cover via webcam: WEA: SC,HN,NL,PT,KP,OV,MK Clear skies. WEA: FD Cloudy. (40%) LA,BR Overcast. 2006 *FD Bad readback: Drive 1, Track 32. 13420 All other readbacks OK. 2034 SC readbacks OK. 2042 *FD Bad readback: Drive 1, Track 32. 13420 *MK Bad readback: Drive 2, Track 04. All other readbacks OK. 2124 *NL Bad readbacks: Drive 1, Tracks 25-33. Footage 3261 - may be problem with head of tape. All other readbacks OK. 2209 All readbacks OK. 2217 MK readbacks OK. 2231 All readbacks OK. 2245 New operator is Paul Dyer. 2333 All readbacks ok. 0000 Date is 2004FEB12/043. 0013 All readbacks ok. 0029 All readbacks ok. 0118 %FD Bad reaback on drive 1, treck 32. 0118 %PT Bad readback on drive 1, track 13. All others ok. 0136 All readbacks ok. 0201 All Readbacks ok. 0237 All readbacks ok. 0247 *NL Bad readbacks on drive 1, tracks 24-33. All others ok. 0302 All readbacks ok. 0321 All readback ok. 0329 *MK WEA: Wind gusts > 35mph. 0336 All readbacks ok. 0344 All readbacks ok. 0428 All readbacks ok. 0443 *NL Bad readbacks on drive 1, tracks 24-33. Footage is about 1000 in forward. All others ok. 0513 All readbacks ok. 0533 All readbacks ok. 0541 All readbacks ok. 0551 All readbacks ok. 0606 MK End of file. 0607 %PT Bad readback on drive 1, track 05. All others are ok. 0614 End. Downtime Summary: Total downtime : 9 min Percentage downtime of observing: 0.1% Average downtime per hour : 0.0 min Total scheduled observing time (# Antennas): 14360 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.