VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BM211I Observer: A. Marscher Project type: VLBA Obs filename: bm211icrd.* Date/Day: 2005APR28/118 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. LA is writing Mark V disc pack NRAO-030 in bank B. PT is writing Mark V disc pack NRAO-027 in bank B. KP is writing Mark V disc pack NRAO-010 in bank A. 1845 Begin at all stations. 1845-1918 *MK No tape available. Site tech will be there HUERR 100 33 soon. 1908 %LA WEA: Wind gusts > 35mph. 2020 %SC 7mm receiver is slightly warm. (35K) 2025 New operator: T. Perreault 2038 Readback check ok 2139 New operator is Jim Ogle. 2141 %High wind gusts at MK. 2146 KP reports scattered high clouds. 2250 Readbacks okay. 2257 MK reports clear skies. 2259 %OV reports overcast skies, intermittent drizzle. 0000 Date is 2005APR29/119. 0006-0009 *SC AZ#1 armature overcurrent fault. Briefly ACU 100 3 disabled the AZ axis to clear the error. 0007 Readbacks okay. 0038-0039 *SC rotation drive fault. FRM 100 1 0038 *OV bad readbacks on track 5, drive #2. Other sites okay. 0114 Readbacks okay. 0213 Readbacks okay. 0247 *Raining hard at SC. 0309-0311 *SC rotation drive fault, motor overspeed. FRM 100 2 0310 Readbacks okay. 0428-0433 *BR rotation position error. FRM 100 5 0448-0451 *BR rotation position error. FRM 100 3 0457-0458 *BR rotation position error. FRM 100 1 0545 New operator is Brian Willard. 0546-1047 *BR recorder 1 accidentally miscabled to board 16021 100 301 set two. Data recorded on tape EVNT0874 on recorder 1 are no good. 0608 Readbacks good all sites. 0619 WEA: rain SC. 0745 WEA: high winds FD,LA,MK. 0747 High Tsys from low elevation SC,HN. 0808 Readbacks good all sites. 0828 Readbacks good SC. 0907-0920 *BR: FRM rotation error. FRM 100 13 0928 Readbacks good SC,HN. 0947-0950 *BR: FRM rotation error. FRM 100 3 1047 End. Downtime Summary: Total downtime : 365 min Percentage downtime of observing: 3.8% Average downtime per hour : 2.3 min Total scheduled observing time (# Antennas): 9620 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.