VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BL149AE Observer: Lister, M. Project type: VLBA Obs filename: bl149aecrd.* Date/Day: 2007AUG09/221 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= 0523 Begin file. MK joins later. VCLOCK check ok. SC at -0.162 UT1-UTC check ok (-0.16) GPS delta < 10us (MK: -8.3us) Operator: T. Perreault *HN 2cm pcal has bad phases and amplitudes. 21053 0523 %NL elevated system temperatures due to rain WEA 0530 MK joins 0542 New operator is Jim Ogle. 1238 FD reports high thin cirrus clouds, damp conditions. 1244-1307 *NL techs need on antenna to deal with a cryo 21021 100 23 problem. 1326-1237 *PT autostowed, power glitch. Repointed. COM 100 1 1331-1334 *FD focus position error. For some reason it FRM 100 3 wasn't accepting updated position commands. Did a master clear and resent commands. 1350 New operator is Betty Ragan. 1415 BR reports clear skies, dry dish. 1445-1446 *PT autostowed. Probably a power glitch. COMM 100 1 1515 OV reports clear, dry weather. 1526 KP reports scattered low clouds. 1540-1547 *OV stowed for a few mintues to let the site CRYO 100 7 techs deal with a problem on the 6cm cryo. 1942-2003 *NL removed briefly to let the site techs work 21021 100 21 on the 3mm cryo. 1949 MK reports clear sky, light wind. 2041 FD reports scattered cumulus clouds, with thunderstorms likely. 2107 KP reports scattered low clouds. 2117 Operator is Anthony Sowinski. 2152-2153 *PT Autostowed during power glitch. COM 100 1 2154-2210 *PT Out of point, more power problems. COM 100 16 2215-2233 *PT Out point again, unstable power. COM 100 18 2254 %OV High winds. 2315 %LA High winds. 2318-2327 *PT Another autostow. COM 100 9 0000 Date is 2007AUG10/222. 0017-0032 *PT Autostow. COM 100 15 0101-0103 *PT Autostow. COM 100 2 0103-0105 *KP Power glitch, autostow. COM 100 2 0108-0146 *PT Antenna out of point, power very unstable. COM 100 38 0147-0220 *PT Autostow. COM 100 33 0224-0307 *PT Out of point, power still glitchy. COM 100 43 0311-0410 *PT Out of point, power still glitchy. COM 100 59 0421-0453 *PT Out of point, power still glitchy. COM 100 32 0501 End at MK. 0514-0524 *PT Out of point, power still glitchy. COM 100 10 0524 End. Downtime Summary: Total downtime : 334 min Percentage downtime of observing: 2.3% Average downtime per hour : 1.4 min Total scheduled observing time (# Antennas): 14410 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.