VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BJ036L Observer: S.G. Jorstad Project type: VLBA Obs filename: bj036lcrd.* Date/Day: 2004DEC10/345 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. 0854 Begin at all stations. 0854 PT is writing Mark V disk pack NRAO-058. 0854-1425 *SC FRM rotatation not at commanded value. 15359 75 248 Error is ~0.3-3.5 degrees. All normal remedies have failed. 0919 PT Com down. Telco working, planned outage. 0924 PT Com up. 0925 All readbacks ok. 0927 *BR WEA: Snowing. 0931-0933 *PT Autostowed. No error message. Probable COM 100 2 power glitch. 0947 *MK WEA: Wind gusts > 35mph. 0953 *SC WEA: Raining. 0956 All readbacks ok. 0956 All readbacks ok. 1027 All readbacks ok. 1059 All readbacks ok. 1130 All readbacks ok. 1157-1246 *SC AZ#1 armature overcurrent. Unclearable ACU 100 49 AZ motor current is 0. Probable blown fuse. Called site tech. No answer, left message. He is probable on the way to the site for regular working hours. 1202 All readbacks ok. 1233 All readbacks ok. 1236 *SC Site on site. Found blown AZ #1 control fuse. 1304 All readbacks ok. 1407 FD Site tech reports clear skies. 1407 *FD Bad readbacks on drive 2, tracks 7 and 9. All other sites were ok. 1445 Operator on duty: Phillip Hicks 1433-1435 *SC Dropped out of pointing. Power glitch. COM 100 2 1439 Readback test: No problems detected. 1450 %KP Weather: Tech reports clear and dry. 1509 %LA Weather: Tech reports clear & dry. 1511 %MK Weather: 35+ mph wind gust(s). 1512 *BR Weather: Overcast with low clouds. Mist/fog. Trace of new snow last night. 1541-1548 *SC Rotation drive fault. FRM 100 7 1556 OV Weather: Tech reports clear & dry. 1618 Readback test at MK, OV, LA, KP, and BR OK. 1651 *BR Weather: Raining. 1749-2150 *PT Antenna moved to another project (PT-Link). SCH 100 241 Unavailable. 1816 Readback Test: No problems. 1848 *Readback test show problem on LA, Rec#2, track 2. The rest show no problems. 1850 *MK Weather: Tech reports clear weather. 1918 Readback test shows no problems. 1950 Readback test shows no problems. 2007-2034 *HN Raining. 2022 *Readback test: Bad track 2, rec#2 at LA. Rest OK. 2059 *HN Raining. 2108 Readback test shows no problems. 2126 *KP Weather: Tech reports clear & dry. 2150 PT returns to program. 2244 New operators are Jim Ogle and Sonja Mendoza. 2300 Readbacks okay at OV, BR and MK (only sites that ran the test.) 2306 *Raining at NL. 2319 OV reports clear skies. 2323-2326 *HN rotation position error. FRM 100 3 0000 Date is 2004DEC11/346. 0048 End. Downtime Summary: Total downtime : 552 min Percentage downtime of observing: 5.8% Average downtime per hour : 3.5 min Total scheduled observing time (# Antennas): 9540 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.