VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BL123B Observer: Lister,M. Project type: VLBA Obs filename: bl123crd.* Date/Day: 2005FEB05/036 Ants Scheduled: SC HN NL FD LA PT KP OV BR =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Brian Willard. GPS delta, Vclock, UT1-UTC values all excellent. LA writing MkV, VSN NRAO-036, Bank B. WEA: clear SC,HN,BR. WEA: overcast FD. WEA: scattered clouds NL,OV,PT,KP,LA. 1704-1657 *MK: not observing due to extreme snow. WEA 100 1433 1704 Begin observation. 1712 All readbacks OK. 1704-1732 *PT: not recording, rebooted. OTHER 100 28 1720 All readbacks OK. 1821 All readbacks OK. 1836 All readbacks OK. 1854 WEA: broken low clouds, dry KP. 1920 %OV: bad readback. track 5, drive 2. Readbacks OK all other sites. 1931 WEA: clear OV. 1946 All readbacks OK. 1954 All readbacks OK. 2047 All readbacks OK. 2120 All readbacks OK. 2122 WEA: broken clouds LA. 2155 Readbacks performed at all sites. All OK. 2158 WEA: clear NL. 2208 Readbacks OK all sites. 2213-2223 *PT: power glitch, repointed. COMM 100 10 2227 Readbacks good all sites. 2235 %OV: bad readback track 5, drive 2. Readbacks OK all other sites. 2300 WEA: rain FD. System temperatures elevated. 2301 WEA: overcast PT. 2302 WEA: clear BR. 2319 Readbacks performed at all sites but NL, all OK. 2344 Readbacks good SC,HN. 2354 Readbacks good NL,FD,PT,KP,OV,BR. 0000 Date is 2005FEB06/037. 0003 Readbacks good all sites. 0016 %NL: bad readbacks tracks 11 and 13, drive 1. Readbacks good all other sites. 0024 Readbacks good all sites. 0046 Readbacks good all sites. 0050-0055 *PT: power glitch, repointed. COMM 100 5 0116 Readbacks good all sites. 0133 Readbacks good at HN. 0141 Readbacks good NL,FD,PT,KP,OV,BR. 0152 Readbacks good NL,FD,PT,KP,OV,BR. 0203 Readbacks good all sites. 0216 Readbacks good SC,HN,NL,PT,BR. 0224 %OV: bad readback track 5, drive 2. Readbacks good all other sites. 0247 Readbacks good all sites. 0252 Operator is Sonja Mendoza. 0302 %KP: bad readback track 12, drive 2. Readbacks good at all other sites. 0319 Readbacks good at all sites. 0329 Readbacks good at all sites. 0342 %OV: bad readback track 5, drive 2. Readbacks good at all other sites. 0350 Readbacks good at all sites. 0414 Readbacks good at all sites. 0429 %OV: bad readback track 5, drive 2. Readbacks good at all other sites. 0439 %KP: bad readback track 12, drive 2 %OV: bad readback track 5, drive 2 %BR: bad readback track 6 and 8, drive 1 Readbacks good at all other sites. 0449 Readbacks good at all sites. 0458 %KP: bad readback track 12, drive 2 Readbacks good at all other sites. 0507 Readbacks good NL,FD,PT,KP,OV,BR 0528 Readbacks good at all sites. 0550 %FD: bad readback track 5, drive 1 Readbacks good at SC,NL. 0554 %PT WEA: Precipitation starting. Elevated system temperatures. 0558 %FD: bad readback track 4, drive 1 Readbacks good at all other sites. 0605 Readbacks good at all sites 0616 %FD: bad readback track 4, drive 1 Readbacks good at all other sites. 0628 Readbacks good FD,PT,KP,OV,BR 0636 Readbacks good at all sites. 0645 Readbacks good HN,NL,FD,PT,KP,OV,BR 0711 %FD: bad readback track 4, drive 1 Readbacks good at all other sites. 0722 Readbacks good at all sites. 0739 Readbacks good at all sites. 0748 Readbacks good at all sites. 0755 Readbacks good at SC. 0803 %FD: bad readback track 4, drive 1 Readbacks good HN,NL,FD,PT,KP,OV,BR 0819 %PT WEA: Precipitation starting. Elevated system temperatures. 0829 Readbacks good at all sites. 0847 Readbacks good at all sites. 0856 Readbacks good at all sites. 0903 Readbacks good at SC. 0911 %FD: bad readback track 5, drive 1 Readbacks good HN,NL,FD,PT,KP,OV,BR 0921 %FD: bad readback track 4, drive 1 Readbacks good at all other sites. 0938 %FD: bad readback track 4, 5, drive 1. Readbacks good at all other sites. 0946 Readbacks good at all sites. 0954 Readbacks good at all sites. 1009 Readbacks good at HN,NL,FD,PT,KP,OV,BR 1019 Readbacks good at NL,FD,PT,KP,OV,BR 1034 Readbacks good at all sites. 1043 Readbacks good at NL,FD,PT,KP,OV,BR 1053 Readbacks good at all sites. 1102 Readbacks good at all sites. 1110 %FD: bad readback track 4, drive 1 Readbacks good at all other sites. 1124 Readbacks good at all sites. 1143 %FD: bad readback track 4, drive 1 Readbacks good at all other sites. 1150 Readbacks good at SC. 1204 Readbacks good at HN,NL,FD,PT,KP,OV,BR 1214 %FD: bad readback track 4, drive 1 Readbacks good at all other sites. 1222 Readbacks good at all sites. 1232 %FD: bad readback track 4, drive 1 Readbacks good at all other sites. 1250 Readbacks good at HN,NL,FD,PT,KP,OV,BR 1258 %FD: bad readback track 4, 5, drive 1 Readbacks good at NL,FD,PT,KP,OV,BR,SC 1305 Readbacks good at HN,NL,FD,PT,KP,OV,BR 1313 Readbacks good at NL,FD,PT,KP,OV,BR 1329 Readbacks good at SC. 1338 %FD: bad readback track 4, drive 1 Readbacks good at HN,NL,FD,PT,KP,OV,BR 1348 Readbacks good at NL,FD,PT,KP,OV,BR 1356 Readbacks good at all sites. 1407 %FD: bad readback track 4, drive 1 Readbacks good at NL,FD,PT,KP,OV,SC 1417 Readbacks good at HN,NL,FD,PT,KP,OV 1433 Readbacks good all sites. 1445 New operator is Brian Willard. 1507 Readbacks good all sites. 1515 %HN: bad readbacks tracks 6 and 8, drive 1. Readbacks good at SC,NL,PT,KP,BR. 1538 WEA: scattered clouds SC,FD,KP,OV,BR. 1539 WEA: clear HN. 1539 WEA: overcast NL,LA. 1540 WEA: scattered clouds PT. 1558 %FD: bad readback, track 4, drive 1. Readbacks good all other sites. 1600 PT: high Tsys due to snow. 1607 Good readbacks SC,HN,NL,PT,KP,OV,BR. 1614 Good readbacks all sites. 1657 End. Downtime Summary: Total downtime : 1476 min Percentage downtime of observing: 11.4% Average downtime per hour : 6.9 min Total scheduled observing time (# Antennas): 12897 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.