VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BJ046R Observer: B. Junor Project type: VLBA Obs filename: bj046rcrd.* Date/Day: 2004APR23/114 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Paul Dyer. VCLOCK, GPS Delta, and UT1-UTC check ok. 0106 Begin at all sites. 0106-0941 *NL TSMPLOTs shows high and varying system INT 50 257 temperatures on channels 1 & 2 (328.49 MHz @ RCP & LCP). Suspect RFI. 0106-1049 *LA TSMPLOTs show high and varying system INT 50 291 temperatures on channels 3 & 4 (336.49 MHz @ RCP & LCP). Suspect RFI. 0106-1049 *KP TSMPLOTs show high and varying system INT 50 291 temperatures on channels 3 & 4 (336.49 MHz @ RCP & LCP). Suspect RFI. 0106-1049 *MK TSMPLOTs show high and varying system INT 50 291 temperatures on channels 1 & 2 (328.49 MHz @ RCP & LCP). Suspect RFI. 0112 All readbacks ok. 0221 %FD Bad readbacks on drive 1, tracks 12 and 13. 0221 %PT Bad readbacks on drive 2, tracks 5,16,22,24,28. All others were ok. 0228 %FD Bad readbacks on drive 1, tracks 12 and 13. All others were ok. 0337 *FD Bad readbacks on drive 1, tracks 12 and 13. All others were ok. 0344 *FD Bad readbacks on drive 1, tracks 12 and 13. 13875 All others were ok. 0454 *FD Bad readbacks on drive 1, track 12. 13875 All others were ok. 0540 New operator: T. Perreault 0610 *FD bad readback drive 1 track 12; 13875 all other sites ok 0617 Readback check at NL,LA,PT,KP,OV,BR,MK ok 0653 HN wea: raining 0802 SC observing ends 0833 HN observing ends 0941 NL observing ends 1049 End. Downtime Summary: Total downtime : 1130 min Percentage downtime of observing: 19.4% Average downtime per hour : 11.6 min Total scheduled observing time (# Antennas): 5830 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.