VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BR079B Observer: G. E. Lanyi Project type: VLBA Obs filename: br079bcrd.* Date/Day: 2002AUG25/237 Ants Used: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is K. Jakischa. VCLOCK okay. 0804 Begin. 0804-0759 *BR 7mm Right FET is saturated. LCP system 09236 25 358 temperatures will be very high. 0804 *NL dewpoint sensor is faulty. Will affect 09411 the index of refraction. 0805-0806 *BR Az brake fault fault. ACU 100 1 0811 All readbacks okay. 0827 Readbacks okay except FD drive 1 tracks 6 & 8. 0857-0859 *MK focus drive fault. FRM 100 2 0922-0925 *MK focus drive fault. FRM 100 3 0932-0935 *KP focus drive fault. Focus is not locking on FRM 100 3 commanded position. When a new command is sent, the focus appears to lock almost immediately, not allowing time to reach the correct position. Then resending the command allows the focus to reach the correct position. 0946-0948 *BR autostowed, due to false 55+ mph OTHER 100 2 wind gust warning. Repointed. 0947-0954 *KP focus motion analysis fault. FRM 100 7 The focus now also drifts off the commanded position when the command is resent. 1012-1014 *BR autostowed again. OTHER 100 2 1018-1021 *BR autostowed again. OTHER 100 3 1030 All readbacks okay. 1036-1040 *MK focus drive fault. FRM 100 4 1122-1124 *KP focus position error. FRM 100 2 1132-1137 *KP focus motion analysis fault. FRM 100 5 1136-1138 *BR autostow. Repointed. OTHER 100 2 1156 All readbacks okay. 1214-1216 *BR autostowed again. Repointed. OTHER 100 2 1226-1230 *KP focus motion analysis fault. FRM 100 4 1239-1245 *KP focus motion analysis fault. FRM 100 6 1253-1302 *KP focus motion analysis fault. FRM 100 9 1321 All readbacks okay. 1327 SC Wea: Light scattered clouds, no precip. 1331-1335 *KP focus position error. FRM 100 4 1340 New operator is Roy Heatwole. 1348 Readbacks checked okay. 1505 HN Wea; Clear skies. 1515-1519 *PT Antenna auto stowed. Power failure. COM 100 4 1548-1555 *BR Antenna auto stowed. Weather station. OTHER 100 7 1631-1637 *KP Focus not in commanded position. 09426 100 6 1646-1648 *BR Antenna auto stowed. Weather station. OTHER 100 2 1652-1658 *BR Antenna not pointed. Working on weather station. OTHER 100 6 1656 KP Wea; Clear skies,dry. 1706-1713 *BR Antenna auto stowed. Weather station. OTHER 100 7 1710 PT Wea; Clear skies,dry. 1724-1728 *BR Antenna not pointed. Weather station work again. OTHER 100 4 1739 LA Wea; Clear skies,dry. 1756-1823 *BR Antenna not pointed. Same problem. OTHER 100 27 1951 MK Wea; Broken low clouds,dry. 2030-2033 *BR Antenna not pointed. Problem continues. OTHER 100 3 2046 Readbacks checked okay. 2219 Readbacks checked okay. 2234-2238 *BR Antenna auto stowed. Power failure. WEA 100 4 2302-2308 *BR Antenna auto stowed. Power glitch. WEA 100 6 Thunderstorms in area. 0000 Date is 2002AUG26/238. 0009 Readbacks checked okay. 0047 Readbacks checked. FD Rec 2 track7 bad. 0126 Readbacks checked okay. 0135 New operator is K. Jakischa. 0136-0137 *FD rotation position error. FRM 100 1 0146-0147 *BR autostowed. Repointed. WEA 100 1 0434 Readbacks okay except LA drive 2 track 5. 0521 All readbacks okay. 0614 All readbacks okay. 0723 All readbacks okay. 0724-0730 *BR recorder 2 lost vaccum, reloaded. 09225 100 6 0737-0740 *BR recorder 2 lost vaccum again, reloaded. 09225 100 3 0759 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