VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BG131A Observer: D. Gabuzda Project type: VLBA Obs filename: bg131acrd.* Date/Day: 2002DEC13/347 Ants Used: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Jim Ogle. VCLOCK and gps delta okay. %SC sending numerous ACU error flags, data is not 10325 affected though. *HN has some snow and ice in dish, Tsys values may WEA be high as a result. *HN 4cm RCP Tsys 1.75 times higher than LCP. 10229 0800 Begin. 0822 Readbacks okay. 0846 Readbacks okay. 0911 Readbacks okay. 1013 Readbacks okay. 1029-1032 *HN EL#2 armature overcurrent fault. ACU 100 3 1030 Readbacks okay. 1047-1049 *HN EL#2 armature overcurrent again. ACU 100 2 1048 Readbacks okay. 1135 Readbacks okay. 1152-1153 *HN EL#2 armature overcurrent again. ACU 100 1 1153 Readbacks okay. 1210-1211 *HN EL#2 armature overcurrent again. ACU 100 1 1227 Readbackx okay. 1259 Readbacks okay. 1315-1316 *HN EL#2 armature overcurrent again. ACU 100 1 1332 %HN reports dense fog. 1347 HN reports clear skies. 1358-1359 *HN EL#2 armature overcurrent again. ACU 100 1 1359 Readbacks okay. 1415-1417 *HN EL#2 armature overcurrent again. ACU 100 2 1416 Readbacks okay. 1431 New operator: T. Perreault 1432 Readback check okay 1449 Readback check okay 1452 KP wea: clear, no precipitation 1458 LA wea: clear, no precipitation 1506-1508 *HN EL#2 armature over current. Cleared and ACU 100 2 repointed antenna. 1506-1507 *FD VME rebooted. Probably due to work on the OTHER 100 1 station sensaphone. 1507 Readback check okay 1517 BR wea: broken low clouds, patchy fog, dish damp no precipitation 1522-1524 *HN EL#2 armature over current. Cleared and ACU 100 2 repointed. 1540-1541 *HN EL#2 armature over current. Cleared and ACU 100 1 repointed. 1551 OV wea: cloudy, no precipitation 1557 Readback check okay 1613 Readback check okay 1630 Readback check okay 1631-1632 *HN EL#2 armature over current. Clearned and ACU 100 1 repointed. 1633-1638 *FD subreflector out of position in both FOCUS and FRM 100 5 ROTATION. Let subsequent source change clear error. 1645-1647 *HN EL#2 armature over current. Cleared and ACU 100 2 repointed. 1702 Readback check okay 1719 Readback check okay 1737-1738 *HN EL#2 armature over current. Cleared and ACU 100 1 repointed. 1750 Readback check okay 1756-1757 *HN EL#2 armature over current. Cleared and ACU 100 1 repointed. 1808 Readback check okay 1811-1813 *HN doing a snow dump to see if the snow in the WEA 100 2 dish will slide out. 1839-1840 *HN EL#2 armature over current. Cleared and ACU 100 1 repointed. 1855 Readback check okay 1921 MK WEA: Clear. 2014 Readback check okay 2031 Readback check okay 2034-2106 *BR observing suspended to allow site tech to swap 10334 100 32 out the formatter board for recorder 2. Recorder techs need to run several diagnostics following the board swap. 2049 Readback check okay 2128 Readback check okay 2139 *BR multiple formatter errors: header control module 10058 error, HC1 FIFO error, backplane 1PPS marker along with FIFO 0/1/2/3 1PPS detected and FIFO 0/1/2/3 Empty messages. Contact Bob McGoldrick (recorder tech) and he is looking at the problem. 2150-2152 *KP VME rebooted. Terminal at site was locked up, SW 100 2 told site tech to reboot. 2154 KP wea: high overcast, no precipitation 2235 New operator is Paul Dyer. *BR Various formatter errors, cleared quickly on their own. 2327 All readbacks ok. 0000 Date is 2002DEC14/348. 0001 OV WEA: Cloudy, dry. 0014 All readbacks ok. 0034 *BR Various formatter errors, cleared quickly on 10058 their own. 0038 All readbacks are ok. 0104 *BR WEA: Raining. 0128 BR various formatter errors, cleared quickly on 10058 their own. 0134 All readbacks ok. 0219 *BR variout formatter errors, cleared quickly on 10058 their own. 0311 All readbacks ok. 0320 *HN WEA: Raining. 0328 All readbacks ok. 0332-0336 *BR Various formatter errors, cleared on their own. 10058 100 4 0418 %BR Bad readbacks on drive 2, tracks 17 and 33. 0421-0423 *BR Various formatter errors, cleared on their own. 10058 100 2 0506 All readbacks ok. 0523 %BR Bad readback on drive 2, track 33. 0540 All readbacks ok. 0550-0553 *BR Various formatter errors, cleared on their own. 10058 100 3 Formatter errors clear at scan change. 0615 All readbacks ok. 0639 New operator is Jim Ogle. 0639-0640 *BR formatter errors. 10058 100 1 0647 Readbacks okay. 0703 Readbacks okay. 0735 End at MK. 0736 Readbacks okay. 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