VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BB242C Observer: Greenhill, L. Project type: VLBI Obs filename: bb242crd.* Date/Day: 2008JAN15/015 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK GB =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Alan Kerr WEA: HN,FD overcast. GPSd: -4.0 MK, UT1-UTC: -0.29, vclock: OK 1840 Begin 1840-1900 *FD out. maser work continues. 22052 100 20 1900 FD back in. maser may be unstable. 1900-1932 *FD BBC1 not locked. 22075 100 32 1932 FD BBC1 and BBC8 have been swapped. 1943 %SC tsys a little high. 1954 %LA overcast. 2130 %PT overcast. 2131 FD clear skies. 2227-2229 *SC out of point. COM 100 2 2240 New operator: T. Perreault 2253-2258 *PT autostowed. Power glitch. Repointed. COM 100 5 2322-2326 *OV AZ#1 armature overcurrent error ACU 100 4 Cleared error by disabling AZ axis 2332-2337 *MK FOCUS motor foldback error FRM 100 5 MASTER-CLEAR reset cleared error condition 0000 Date is 2008JAN16/016. 0349-0352 *SC autostowed. Power glitch. Repointed. COM 100 3 0416 BR intermittent AZ#2 low lube pressure errors ACU probably due to cold temperatures - will contact oncall site tech 0432 BR site tech called, said that the low lube pressure error is false and due to a bad sensor that flags when weather is cold 0630 End. Downtime Summary: Total downtime : 71 min Percentage downtime of observing: 1.0% Average downtime per hour : 0.6 min Total scheduled observing time (# Antennas): 7100 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.