VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BT087C Observer: Tafoya, D. Project type: VLBA Obs filename: bt087ccrd.* Date/Day: 2007JAN03/003 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Paul Padilla UT1-UTC ok (0.04) GPS delta < 10 us (NL at 8.2 us) VClock ok (PT at -0.088) 1550 Begin 1550-0109 *FD out due to work on AZ#1 drive axle 19601 100 559 1550-1606 *HN doComent error, problem setting formatter clock FMTR 100 16 MCB not communicating with formatter, recording not starting. Site Tech called to reset formatter. 1734-1743 *NL removed from observation as per Walter's request OTHER 100 9 2107-0109 %BR no monitor data returning from the 19656 weather station. The is an MCB (Master Control Bus) error. Estimated value of refraction model will be off. 2245 New operator is Jim Ogle. 0000 Date is 2007JAN04/004. 0007 OV reports mostly clear skies. 0040-0106 *NL EL#1 armature/electronics CB fault. Error doesn't 19653 100 26 clear when antenna is put in Standby. 0045 &NL site tech called out. 19653 0109 End. Downtime Summary: Total downtime : 610 min Percentage downtime of observing: 10.9% Average downtime per hour : 6.5 min Total scheduled observing time (# Antennas): 5590 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.