VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BL149BB Observer: Lister, M. Project type: VLBA Obs filename: bl149bbcrd.* Date/Day: 2008AUG25/238 Ants Scheduled: SC HN NL FD LA PT KP BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is A. Sowinski. UT1-UTC -0.46; gps delta and vclock okay. OV not scheduled due to maint visit. %FD Weather station having problems. Dew point off. 0856 Begin. 0918 *BR Raining. 0927 *SC Raining. 1014 MK Windy. 1201 *HN Raining. 1240 FD reports wea: high thin cirrus clouds, ground and dish damp. 1330 New operator: T. Perreault 1332 PT wea: clear, no precipitation 1448-1509 *FD FOCUS brake fault. Cleared. 23144 100 21 1531 KP wea: low overcast, no precipitation 1537-1541 *FD FOCUS brake fault. Cleared. MF 23144 100 4 1618 FD FOCUS was off commanded position, but there were no CHECKER messages. Reset FOCUS position. 1629-1633 *KP autostowed. Power glitch. Repointed. COM 100 4 1706-1719 *HN Mark5 crashed when it went to record on module REC 100 13 NRAO-091 in bank A. Called site tech, he will mount two new packs and will have to reboot the Mark5. 1742 FD this is the second time that there has been a false FOCUS brake fault. Commanded position goes to zero (00.0). There are no CHECKER error conditions about the FOCUS being off position. Able to reset and commanded to correct position. 1800-1803 *FD FOCUS brake fault. Cleared. 23144 100 3 1801-1804 *PT autostowed. Power glitch. Repointed. COM 100 3 1914 MK wea: clear, gusty winds, no precipitation 2028-2034 *PT autostowed. Power glitch. Repointed. COM 100 6 2040 KP wea: low clouds, no precipitation, looks like rain possible - lightning visible 2058 %KP wea: raining, elevated system temperatures 2106-2109 *PT autostowed. Power glitch. Repointed. COM 100 3 2145 New Operator: Paul Padilla 2149-2150 *KP autostowed, power glitch. COM 100 1 2152-2153 *FD Focus brake fault. 23144 100 1 2212-2214 *KP autostowed, power glitch. COM 100 2 2231-2236 *SC autostowed, power glitch. COM 100 5 2331-2332 *SC autostowed, power glitch. COM 100 1 0000 Date is 2008AUG26/239. 0029-0032 *FD focus brake fault. 23144 100 3 0146-0148 *FD Focus position problems. 23144 100 2 0239-0241 *FD focus brake fault. 23144 100 2 0240-0242 *MK focus brake fault. FRM 100 2 0320 %KP raining. 0353-0409 *FD focus brake fault 23144 100 16 0507-0509 *FD focus position error 23144 100 2 0525-0531 *FD focus brake fault 23144 100 6 0550 New Operator is Alan Kerr 0619 %PT precipitation starting. 0628 PT precipitation stopped. 0741-0744 *MK focus drive fault. FRM 100 3 0749-0822 *FD focus position error. would not clear FRM 100 33 and command stuck at same value. master-clear reset and entered the correct value. 0755-0800 *MK focus drive fault at 89.1 it kept FRM 100 5 jumping 0.2-0.4 past the commanded position. 0856 End. Downtime Summary: Total downtime : 141 min Percentage downtime of observing: 1.1% Average downtime per hour : 0.7 min Total scheduled observing time (# Antennas): 12960 min (9) 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.