VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BL149BR Observer: Lister, M. Project type: VLBA Obs filename: bl149brcrd.* Date/Day: 2009AUG19/231 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Jim Ogle. %Sitecam weather: overcast at NL; party cloudy at SC, HN and FD; hazy at BR; clear elsewhere. VCLOCK and gps delta checks okay. 2112 Begin at all sites except SC and HN. 2115 %High wind gusts at PT. 2135 Begin at SC and HN. 2140 New operator: T. Perreault 2153-2203 *MK autostowed. CHECKER reporting Encoder coarse ACU 100 10 fault and Servo on synchro errors. Contacted site tech. He reported that there is an encoder alarm. Need to reset the ACU. 2201-2214 *PT loss of commercial power - on generator COM 100 13 Will repoint when commercial power restored. 2214 NL wea: raining; elevated system temperatures 2216-2225 *KP autostowed. Power glitch. Repointed. COM 100 9 2238-2255 *OV not pointing - multiple EL messages. AELEC 100 17 Contacted site tech, he will go check - sounds like a fuse was blown. 0000 Date is 2009AUG20/232. 0145 There was an earthquake at the AOC. No damage. Further investigation looking at USArray sites for NM shows that the earthquake was felt throughout central NM. 0224-0231 *HN not pointing, in AZ clockwise final limit. ACU 100 7 Will contact oncall tech. While talking w/ tech, I brought up the ACU and ACUERR screen for the site, there were no errors. Able to point antenna without any issue. 0441 NL Mark5 - there was a communications lost error with the Mark5 unit at 04:41:05 UT - when it recovered on its own at 04:41:29 UT the recording module in bank B, NRAO-035 went to FULL state with 1990.64 Gb recorded out of 2000.38 Gb on the module. Recording started on NRAO+259 in bank A. Other modules that have switched have a "w" (for write-protected) and are closer to being full. Will send an email to Walter Brisken. 0546 Operator is A. Sowinski. 0554 *SC Rain. 0602 *NL Rain. 1117-1246 *HN Parking antenna for inspection. When the site OTHER 100 89 techs arrived they found evidence that people had climbed the fence overnight. This may be what caused the problem earlier with the antenna stowing. 1235 %MK Rain. 1242 HN Site tech says we can point the antenna again. 1255 FD wea: cloudy, dry. 1345 New Operator is Alan Kerr 1423 BR reports clear skies with some smoke in the air 1651-1733 %SC precipitation 1709-1745 *OV comm lost. dial backup connects but does NOT COMM transfer data. Site Tech is looking into the problem. 1752 MK occasionally reporting 35+MPH wind caution 1816-1818 *PT FIFO error on HC1. cleared. 21522 100 2 2028 MK ends. 2104 End. Downtime Summary: Total downtime : 147 min Percentage downtime of observing: 1.0% Average downtime per hour : 0.6 min Total scheduled observing time (# Antennas): 14320 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.