VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BW086A Observer: Wiik, K. Project type: VLBA Obs filename: bw086acrd.* Date/Day: 2006AUG03/215 Ants Scheduled: SC HN NL FD LA PT KP OV BR =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Sonja Mendoza. Vclock, GPS delta and UT1-UTC time checks all okay. %OV WEA: Gusty winds. %SC WEA: Overcast skies, intermittant precipitation, gusty winds, feeling the effects of Tropical Storm Chris. Tropical storm warning in effect for the US Virgin Islands, including St. Croix. *MK unavailable for observation due to AZ bearing 18621 replacement in progress. 0326 Begin observation with all available antennas. 0326 %FD HVAC: A/C having difficulties keeping a BAC constant temperature at the site in part due to the high humidity. Site tech is aware and monitoring. Maser temperature has gradually increased over the past several hours, but seems to have stabilized. Maser temp currently 25.9C. 0326-1526 *OV 3mm cryo cycling. 18607 100 720 0326-0328 *PT Mark5 unit was offline; onlined now. Doing a HUERR 100 2 reobs command to get the recording going. 0421 %FD HVAC: The AC really kicked in and things are BAC cooling rapidly. Maser temp now 22.9C. 0541 New operator is Jim Ogle. 0559-0601 *FD rotation position error. FRM 100 2 0623-0625 *FD rotation position error. FRM 100 2 0627-0628 *HN rotation position error. FRM 100 1 0631-0634 *OV AZ#1 armature overcurrent fault. Put antenna ACU 100 3 briefly in Standby to clear errors then repointed. 0715-0716 *SC and FD rotation position errors. FRM 200 2 0734-0736 *HN and BR rotation position errors. FRM 200 4 0737 *Raining at NL. 0738-0739 *SC rotation position error. FRM 100 1 0817-0818 *KP rotation position error. FRM 100 1 0837-0839 *BR rotation position error. FRM 100 2 0841-0842 *FD rotation position error. FRM 100 1 0857-0858 *FD rotation position error. FRM 100 1 0915-0916 *FD rotation position error. FRM 100 1 0924-0925 *HN rotation position error. FRM 100 1 1025 %FD building temperatures are going up again. BAC 1029-1030 *BR rotation position error. FRM 100 1 1038-1039 *LA rotation position error. FRM 100 1 1113-1114 *FD rotation position error. FRM 100 1 1117-1118 *HN rotation position error. FRM 100 1 1127-1129 *LA rotation position error. FRM 100 2 1203 %FD building temperatures are coming down again. BAC 1206-1208 *NL rotation position error. FRM 100 2 1210 *Raining at SC. 1226-1227 *HN rotation position error. FRM 100 1 1231 HN reports clear skies. 1241 End at SC. 1240 *FD reports cloudy skies, damp conditions. 1240-1241 *FD rotation position error. FRM 100 1 1303-1304 *FD rotation position error. FRM 100 1 1308 End at HN. 1317-1319 *LA, KP and BR rotation position errors. FRM 300 6 1331 New operators: T. Perreault and Heidi Gerhardt 1357-1400 *PT out of point. COM 100 3 1402 LA reports scattered high clouds and dry. 1445 BR report a few high scattered clouds, ground and dish dry 1503 End at NL. 1509 OV report clear and dry 1518 KP report broken low clouds and dry. 1526 End. Downtime Summary: Total downtime : 764 min Percentage downtime of observing: 11.8% Average downtime per hour : 7.1 min Total scheduled observing time (# Antennas): 6480 min (9) 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.