VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BV059AD Observer: Vlemmings, W.H.T. Project type: VLBA Obs filename: bv059adcrd.* Date/Day: 2007FEB25/056 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Paul Padilla GPS delta, UT1-UTC, and VClock are all ok. %BR and %NL have recent snow/ice All other sites look clear (via webcam) 1454 Begin 1454-1953 *NL out of observation: on Generator power COM 100 299 1454-1953 *BR out of observation until determination of weather WEA 100 299 can be made (webcam is still slightly dark) *BR snow in ~80% of dish and moving antenna makes EL motor currents high. Leaving BR out of observation for now. 1613-1616 *PT autostowed, repointed. Power glitch? COM 100 3 1629-1637 *PT armature/electronics CB, Emergency stop, COM 100 8 AZ field over current and ELLIP AC Power off. Big Power glitch? Very brief. Repointed, for now. 1633 *BR on Generator Power, not in observation COM 1644 *NL goes off generator power, but will stay out of observation for now to see if this is temporary. 1649 *NL back on generator power COM 1750 *BR off generator power, weather still poor 1836 %OV high winds 1953 End. Downtime Summary: Total downtime : 609 min Percentage downtime of observing: 20.4% Average downtime per hour : 12.2 min Total scheduled observing time (# Antennas): 2990 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.