VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BM220B Observer: Mioduszewski, A. Project type: VLBA Obs filename: bm220bcrd.* Date/Day: 2005APR20/110 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= 1647 Begin file VCLOCK check ok. HN at -0.172 UT1-UTC check ok (-0.59) GPS delta < 10 us Operator: T. Perreault LA recording Mark V bank A pack NRAO-046 KP recording Mark V bank B pack JIVE-014 1647-0329 %HN elevated system temperatures on channels 7 INT 25 160 and 8. Suspect RFI. 1647-2133 *BR recorder 1 accidentally miscabled to board 16021 100 286 set two. Data recorded on tape VLBA0649 on recorder 1 are no good. 1648 PT Formatter errors: FMTR Header Control Module #2 HC2 FIFO Error Backplane 1PPS Marker detected FIFO 2,1,0 1PPS detected These are formatter board set 2 errors and will not affect data. 1651 MK joins 1752 PT mounted Mrak V disc pack NRAO-020. Switched to stmode. There may be monitor data for both tape and discs. 2038 Readback check ok 2139 New operator is Paul Dyer. 2232 %LA WEA: Wind gusts > 35mph. 2234 All readbacks ok. 2235 %PT WEA: Wind gusts > 35mph. 2323 *HN WEA: Raining. 0000 Date is 2005APR21/111. 0030 All readbacks ok. 0226 All Readbacks ok. 0329 End. Downtime Summary: Total downtime : 446 min Percentage downtime of observing: 6.9% Average downtime per hour : 4.2 min Total scheduled observing time (# Antennas): 6420 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.