VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BK114C Observer: Kondratko, P. Project type: VLBA Obs filename: bk114ccrd.* Date/Day: 2005APR24/114 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK Y GB EB =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Sonja Mendoza. Vclock, GPS delta and UT1-UTC time checks ok. LA writing on MkV disk pack NRAO-055, bank A. PT writing on MkV disk pack NRAO-035, bank A. KP writing on MkV disk pack NRAO-062, bank B. WEA: SC: Heavy cloud cover, occasional sprinkles. WEA: FD,LA,PT,OV: Clear skies. OV has occasionally gusty winds. WEA: KP: Partly cloudy (cumulus), with gusty winds. WEA: HN: Overcast skies, recent rains, wet. WEA: BR: High, thin clouds, dry. WEA: NL: High scattered broken clouds, occasionally gusty winds. WEA: MK: Partly cloudy, but mostly clear. Occasional gusty winds. 0010 Begin observation. 0010-0731 *BR recorder 1 accidentally miscabled to board 16021 100 441 set two. Data recorded on tape VLBA0381 on recorder 1 are no good. 0010 Y Note: Various BBC's show low power due to tuning outside of the range of the VLA. Data analysts have done this purposely for the needs of the project. 0045 *HN WEA: Rain. 0113 Readback check ok 0127 %BR WEA: wind gust > 35 mph. 0136 New operator: T. Perreault 0238-0239 *SC AZ#1 armature overcurrent error message ACU 100 1 Cleared by momentarily disabling the AZ axis. 0240 Readback check ok 0247 Readback check ok 0325 MK put into STANDBY, source is below the horizon, next source change at 0434 UT. 0408 %KP wea: 35+ mph wind caution warnings 0416 Readback check ok 0422 Readback check ok. 0542 Readback check ok 0549 Readback check ok 0659 Readback check ok 0725 Readback check ok 0749 %KP wea: 55+ mph wind stow warning 0754-0755 *NL AL#2 armature overcurrent error message ACU 100 1 Cleared by momentarily disabling the AZ axis 0859 Readback check ok 0908 Readback check ok 1018 %PT wea: raining 1027 %LA wea: raining 1049 Readback check ok 1058 Readback check ok 1118 Readback check ok 1129 Readback check ok 1134 PT recording Mark V bank B pack NRAO-021 1139 Readback check ok 1150 Readback check ok 1152 %PT wea: 55+ mph wind stow warning 1152-1208 *PT autostowed due to winds. Will wait 15 minutes WEA 100 16 then repoint. 1201 Readback check ok 1210 KP recording Mark V bank A pack NRAO-009 1212 Readback check ok 1222 Readback check ok 1223 LA recording Mark V bank B pack NRAO-064 1133 Readback check ok 1244 Readback check ok 1255 Readback check ok 1305 Readback check ok 1319 Readback check ok 1334 Readback check ok 1339 Readback check ok 1343 Operator is Sonja Mendoza. 1353 Readbacks ok. 1353 WEA: SC,FD,OV: Mostly clear with scattered high clouds. WEA: HN,LA: Rain. WEA: BR,KP,PT: Overcast skies. Gusty winds at KP. 1358 Readbacks ok (no readback at SC). 1413 Readbacks ok (no readback at SC,OV,Y). 1416 Readbacks ok. 1423 Readbacks ok. 1433 Readbacks ok (no readback at Y). 1447 Readbacks ok (no readback at MK). 1447 MK leaves observation as scheduled. 1459 End. Downtime Summary: Total downtime : 459 min Percentage downtime of observing: 4.7% Average downtime per hour : 2.8 min Total scheduled observing time (# Antennas): 9779 min (11) 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.