VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BC120BZ Observer: Chatterjee, S. Project type: VLBA Obs filename: bc120bzcrd.* Date/Day: 2003OCT02/275 Ants Used: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= 0330 Begin file VCLOCK check ok. SC at -0.085 UT1-UTC check ok GPS delta < 10 us Operator: T. Perreault 0330-0336 *OV not observing. New maser being installed. 12466 100 6 Will put antenna into observing if the maser gets installed and the time is sync'd. 0330-0531 %MK dewpoint reading higher than air temperature. WEAST Estimated value of refraction model may be off. Webcam shows some clouds but no obvious weather. 0336 OV observing. Brent Willoughby called, said that 12466 the maser is hooked up and that the station timing has been set. He said that there is no MCB (Master Control Bus) "chatter" between the maser and the station VME - they aren't talking to each other. He also asked that operations keep an eye on the station clock and warned that we may have to "bump" it to get it to sync up with the GPS time. Brent said that they will continue to work on the lack of MCB chatter tomorrow. 0531 End. Downtime Summary: Total downtime : 6 min Percentage downtime of observing: 0.5% Average downtime per hour : 0.3 min Total scheduled observing time (# Antennas): 1210 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.