VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BL115C Observer: G.E. Lanyi Project type: VLBA Obs filename: bl115ccrd.* Date/Day: 2004FEB15/046 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Jim Ogle. VCLOCK and gps delta check okay. 0205 Begin. 0212 %High wind gusts at MK. 0235 *FD bad readbacks: Drive 1, Tracks 04,32. All other readbacks OK. 0245 New operator Cyrus M Reed. WEA: Cloud cover via webcam: WEA: MK Clear skies. Other sites unknown (night). WEA: No recent precipitation at any site. 0444 All readbacks OK. 0521-0522 *FD Focus motion analysis fault. Re-commanded to FRM 100 1 position, cleared. 0540-0541 *FD Focus motion analysis fault. Re-commanded to FRM 100 1 position, cleared. 0542 %NETMON on Janksy hung. Restared at 0552. SW 0622 All readbacks OK. 0634 All readbacks OK. 0645 All readbacks OK. 0737 All readbacks OK. 0748 All readbacks OK. 0754 *HN Bad readback: Drive 2, Track 02. *MK Bad readback: Drive 2, Track 02. All other readbacks OK. 0816 All readbacks OK. 0829 All readbacks OK. 0836 All readbacks OK. 0853 All readbacks OK. 0936 All readbacks OK. 0953 *MK Bad readback: Drive 2, Track 02. All other readbacks OK. 1011 All readbacks OK. 1034 All readbacks OK. 1045 All readbacks OK. 1058 All readbacks OK. 1104 SC,HN,FD,MK readbacks OK. 1116 All readbacks OK. 1122 All readbacks OK. 1135-1238 &PT Will not move down in elevation. Known problem 13431 100 63 with ACU backplane. Called out site tech (Kelly) at appx. 1150UT. 1207 All readbacks OK. 1214 All readbacks OK. 1354-1357 *KP BBC7 "Frequency does not match observation" BBC 100 3 error. Cleared on scan change. 1430 WEA: Cloud cover via webcam: WEA: SC,HN,NL,KP,OV Clear skies. WEA: FD,PT Cloudy. (10%,85%) BR,MK Unknown (night). WEA: LA Webcam not updating. 1431 *MK Bad readback: Drive 1, Track 14. All other readbacks OK. 1448 New operator is Jim Ogle. 1549 Readbacks okay. 1600 Readbacks okay. 1640 *MK bad readbacks on tracks 30 and 32. Other sites okay. 1700 Readbacks okay. 1730 Readbacks okay. 1735-1736 *FD rotation position error, appears the FRM did not FRM 100 1 get the position commands at the scan change. 1741 Readbacks okay. 1823 OV reports partly cloudy skies. 1841 Readbacks okay. 1906 Readbacks okay. 1934 Readbacks okay. 1952 Readbacks okay. 2000 MK reports broken cirrus clouds. 2026 Readbacks okay. 2033 Readbacks okay. 2057 Readbacks okay. 2120 Readbacks okay. 2131 HN reports clear skies. 2132-2137 *NL AZ#2 armature overcurrent error. Disabled AZ ACU 100 5 axis to clear error then re-enabled it to resume pointing. 2135 %High wind gusts at MK. 2148 Readbacks okay. 2205 Readbacks okay. 2309 %BR reports low clouds, overcast conditions with light rain. 2344 Readbacks okay. 2347 LA reports broken high clouds. 0000 Date is 2004FEB16/047. 0002 Readbacks okay. 0008 Readbacks okay. 0015 Readbacks okay. 0022 KP reports clear skies. 0034 Readbacks okay. 0110-0111 *FD focus motion analysis fault. FRM 100 1 0149-0151 *FD focus motion analysis fault. FRM 100 2 0202 End. Downtime Summary: Total downtime : 77 min Percentage downtime of observing: 0.5% Average downtime per hour : 0.3 min Total scheduled observing time (# Antennas): 14370 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.