VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BC056E Observer: C. Carilli Project type: VLBA Obs filename: bc056ecrd.* Date/Day: 1997FEB27/058 Ants Used: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Roy Heatwole. 1130 Begin file. 1130-1655 %FD MCB errors....some BBC flags may or may not be 20286 -valid 1130-1655 *MK not used due to excessive ice on antenna. WEA 100 325 Technicians unable to get to site. 1130 SC 7mm sensitivity is low. 13120 1130 BR 7mm sensitivity is low. 14268 1130 PT tape #1 poor readbacks on odd tracks. 20158 1130 KP wea; Wind gusts > 35mph 1141-1143 *SC FRM focus and rotation brake faults. FRM 100 2 1204-1207 *KP Subreflector rotation out of position. FRM 100 3 1237 %HN wea; Overcast with light rain. 1238-1239 *SC FRM focus brake fault. FRM 100 1 1248-1249 *KP auto stowed. AELEC 100 1 1245 New operator is Brent Willoughby 1302-1303 *SC Rotation position error FRM 100 0 1336-1343 *SC Focus and rotation position errors FRM 100 7 1359-1402 *KP Rotation position error FRM 100 3 1400 HN Wea: Raining 1442-1448 *KP 55mph wind stow WEA 100 6 1451-1506 *KP 55mph wind stow WEA 100 15 1500 LA Wea: Mostly cloudy, dish is free of snow 1516-1530 *KP 55 mph wind stow WEA 100 14 1532-1533 *KP Antenna autostowed COM 100 1 1607-1609 *PT Rotation position errors FRM 100 2 1619-1621 *KP Rotation position error FRM 100 2 1630 BR Wea: A few high thin clouds, east, dish clear 1644-1646 *KP Rotation position error FRM 100 2 1655 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