VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BO013B Observer: Ojha, R. Project type: VLBA Obs filename: bo013bcrd.* Date/Day: 2003FEB22/053 Ants Used: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= 1903 Begin file VCLOCK check ok. SC at -0.154 GPS delta < 10 us Operator: T. Perreault 1903 %HN wea: raining, possible freezing rain/snow later. May have to stow antenna. Expect to see higher than normal system temperatures at 4cm. 1903-1118 *PT no 90/50 cm receiver. Was not installed when new FE 25 243 subreflector was installed. 1914 SC joins 1915 %Webcam shows mostly clear / clear skies at all sites except HN (overcast & raining) and NL (overcast) PT has 35+ mph wind caution 1919-1922 *PT autostowed. Power glitch. Repointed. COM 100 3 1935 %HN wea: site tech reports snow, sleet, and freezing rain 1937 MK wea: clear, easterly winds 2006 *NL bad readback drive 1 track 33 All others okay 2027 *NL bad readback drive 1 track 32 All others okay 2045-2049 *HN subreflector out of position in Rotation. FRM 100 4 Did a MASTER CLEAR reset, repositioned. 2052-2055 *SC subreflector out of position with a Focus motion FRM 100 3 analysis fault. Repositioned. 2102 FD,LA,PT,KP,OV readback check okay 2111 BR wea: scattered low clouds, no precipitation 2201 Readback check okay 2217-2219 *SC subreflector out of position with a Focus motion FRM 100 2 analysis fault. Repositioned. 2218 NL bad readback drive 1 track 32 All others okay 2337 KP wea: clear, no precipitation 0000 Date is 2003FEB23/054. 0013 LA wea: overcast, no precipitation 0021-0026 *HN subreflector out of position with a Rotation FRM 100 5 motion analysis fault. Repositioned. 0107 Readback check okay 0125 Readback check okay 0128 OV wea: clear, no precipitation 0136 Readback check okay 0153 Readback check okay 0206 Readback check okay 0220 Readback check okay 0229 Readback check okay 0238 New operator is Jim Ogle. 0257 Readbacks okay. 0255 %High wind gusts at SC and LA. 0329-0332 *SC az#1 armature over current fault. Put antenna in AELEC 100 3 standby and repointed, error cleared. 0332-0333 *SC focus motion analysis fault. Repositioned. FRM 100 1 0337 %High wind gusts at BR. 0339 Readbacks okay. 0424 *FD bad readbacks on track 5, drive #1. Other sites all okay. 0455 %High wind gusts at MK. 0457 Readbacks okay. 0508 %High wind gusts at FD. 0509 Readbacks okay. 0522-0524 *SC az#1 armature over current fault. Put in standby AELEC 100 2 and repointed, error cleared. 0523-0524 *KP autostowed, power glitch. COM 100 1 0543 Readbacks okay. 0605-0607 *SC focus motion analysis fault and rotation drive FRM 100 2 fault. Recommanded both, went into position. 0614 Readbacks okay. 0724 %BR reports overcast skies, light snow falling. 0725 Readbacks okay. 0811 %HN freezing rain still falling. 0826 Readbacks okay. 0857 Readbacks okay. 0919 *KP bad readbacks on all tracks, it was probably at the end of a pass and couldn't back up properly. All other sites okay. 0946-0947 *SC focus motion analysis fault again. FRM 100 1 1011 Readbacks okay. 1108 Readbacks okay. 1118 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