VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BL149AD Observer: Lister, M. Project type: VLBA Obs filename: bl149adcrd.* Date/Day: 2007JUL16/197 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Anthony Sowinski. UT1-UTC -0.16, gps delta and vclock okay. 0652 Begin file. 0652-1914 *HN Unavailable due damage from power hit. 20790 100 742 0652-0650 PT PCal data may not be any good. 20527 0835-0843 *KP Commercial power unstable, antenna autostowed. COM 100 8 1304-1317 *SC AZ#2 armature/electronics CB fault. COM 100 13 1323-1326 *PT Power glitch, antenna autostowed. COM 100 3 1339 New Operator: Paul Padilla 1417 %NL raining. 1424 BR WEA: High Scattered Clouds 1443 %MK raining. 1532 %KP WEA: Overcast low clouds. 1741-1753 *OV 68010 Formatter error. Reset formatter. FMTR 100 12 1850-1856 *OV AZ #1 armature over current ACU Cleared after being put in standby temporarily. 1914-0650 *HN put into observation to test ACU functionality. 20790 100 696 However, the 2cm receiver is still out, so the data recorded by HN is no good. Will erase module at end project. 1950-1953 *PT autostowed, power glitch. COM 100 3 2007 %KP raining. 2050 %PT raining. 2042-2056 *OV AZ #1 armature over current, following by ACU 100 14 autostow in wind gust. Repointed with fault cleared. 2120 *KP WEA: Thunderstorm, very light rain, wet. WEA 2122-2125 *NL autostowed, power glitch. COM 100 3 2128-2131 *PT autostowed, power glitch. COM 100 3 2144 New operator is Heidi Gerhardt 2149 %NL precipitation starting 2157 OV 35+ mph wind caution 2257-2354 *OV fmtr error: software error, header control 20858 100 57 module #1 error, VME bus access error, 68010 error. Called out site tech to check on things. 2300 *OV 55+ mph wind gusts 2307-2310 *PT autostowed, bad weather in area, power glitch COM 100 3 2342 New operator: T. Perreault 2354 OV site tech reset formatter, cleared the errors. Did a REOBS to reset the formatter and to make sure that the 68010 error didn't happen again. Everything looks good so far for now. 0000 Date is 2007JUL17/198. 0016-0102 *OV formatter errors back again; 68010 error 20858 100 46 with Bus error. Did a REOBS to see if that would clear the formatter errors, along with a RESETMCB. Still have errors. Will call the site tech again. 0035 Contacted observing scheduler concerning this observation. He said that eight antennas are needed, so we can pull OV from observing. Contacted site tech, he wants to go and reset the formatter and the VME computer interface. He reports that there is a lot of lightning and he thinks that "dirty power" may be causing the problem. If the formatter errors out after this reset, will pull OV from observing. 0059 Operator is Heidi Gerhardt 0102-0119 *OV taken out of project due to fmtr errors 20858 100 17 resetting vme, mk5, and racks to see if that will clear fmtr errors 0120 OV fmtr ok so far since the reset 0257-0333 *OV fmtr errors back, still can't clear 20858 100 36 0333-0650 *OV taken out due to the return of the fmtr errors 20858 100 197 0341-0346 *NL autostowed, power glitch due to bad weather COM 100 5 0445-0448 %FD focus postion error > 1mm FRM 100 3 0545 New Operator is Alan Kerr 0551-0650 *KP not writing to disc. toggling between MOUNTED REC 100 59 and RECORD zero. Module NRAO-045 at 1381.97 of 2000.38 GB in Bank A. 0628 End at MK. 0650 End. Downtime Summary: Total downtime : 1920 min Percentage downtime of observing: 13.4% Average downtime per hour : 8.0 min Total scheduled observing time (# Antennas): 14380 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.