VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BM171I Observer: A. Marscher Project type: VLBA Obs filename: bm171icrd.* Date/Day: 2003FEB16/047 Ants Used: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Paul Dyer. VCLOCK and GPS Delta check ok. 2326 Begin at all sites. 2326-1426 *HN Antenna is unusable. To much snow and ice WEA 100 900 on the dish to safely point. 2326-1426 %PT Secondary reflector was recently replaced FRM and there seems to be problems. Calibration may be poor. 2336 WEA: Web cams show: SC is dark. MK is clear. All others sites show broken thin overcast. 0000 Date is 2003FEB17/048. 0126 %FD Bad readbacks on drive 1, tracks 5,32,33. 10857 All others ok. 0236 New operator: T. Perreault 0300 MK wea: scattered cumulus, no precipitation 0327 NL bad readback drive 1 track 33 %FD bad readback drive 1 track 5 10857 All others okay 0459 %FD bad readback drive 1 track 5 10857 All others okay 0609 %NL bad readback drive 1 tracks 32,33 All others okay 0656 %FD bad readback drive 1 track 5 10857 All others okay 0806 Readback check okay 0944-0946 *MK subreflector had both Focus and Rotation drive FRM 100 2 faults. Cleared errors, let source change reposition the subreflector. 1022-1024 *MK subreflector Rotation drive fault. Cleared. FRM 100 2 1045 %OV bad readback drive 2 track 16 All others okay 1237 Readback check okay 1426 End. 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 = TP/SP x Tcal/2