VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BG139B Observer: Gabuzda, D. Project type: VLBA Obs filename: bg139bcrd.* Date/Day: 2004JAN17/017 Ants Scheduled: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= 0430 Begin file. SC, HN join in a few minutes. VCLOCK check ok. SC at -0.164 UT1-UTC check ok GPS delta < 10 us Operator: T. Perreault 0430 SC site tech Greg Worrell is on site to work on the dry air (low pressure). He reports that the whole east end of the island is dark due to a power failure - a driver hit a power pole. 0430 NL wea: raining 0430-0419 *MK high system temperatures on channels 5, 6, INT 38 543 and 7 (1428.49 MHz for channels 5, 6; 1432.49 MHz for channel 7). 0433 SC back on commercial power 0438 SC, HN join 0445 SC site tech Greg is leaving the site 0447 LA bad readback drive 1 tracks 26,31,32,33; all other sites ok 0600 Readbacks this past hour ok at all sites except: LA bad readback drive 1 track 33 at 0521 and 0559 UT 0635 New Operator is Dave Pierce. 0700 Readbacks this past hour okay at all sites. 0745 %NL WEA: Precipitation starting. 0800 Readbacks this past hour okay at all sites except: LA bad readback on drive #1, track 32 at 0735 UT. 0827 %BR WEA: Precipitation starting. 0900 Readbacks this past hour okay at all sites except: LA bad readback on drive #1, track 31 at 0827 UT. 0902 %SC WEA: Precipitation starting. 1000 Readbacks this past hour okay at all sites. 1100 Readbacks this past hour okay at all sites. 1134-1140 *KP Autostowed. Power bump. Repointed COM 100 6 1135 %NL WEA: Precipitation starting. 1200 Readbacks this past hour okay at all sites. 1300 Readbacks this past hour okay at all sites. 1335 Webcam Weather Update: SC,FD - Mostly clear, scattered low clouds. HN - Clear. NL - Foggy. Other sites still dark. 1353-1355 *NL Autostowed. Power bump. Repointed. COM 100 2 1400 Readbacks this past hour okay at all sites. 1402 %FD WEA: Wind gusts > 35 mph. 1408-1410 *OV #1 AZ motor overcurrent. Momentarily ACU 100 2 disabled/enabled AZ control. 1417-1420 *HN Ran out of tape. HUERR 100 3 1445 New operator Cyrus M Reed. 1500 All readbacks for past hour OK. 1503 All readbacks OK. 1514 All readbacks OK. 1539 MK readbacks OK. 1548 All readbacks OK. 1557 All readbacks OK. 1600 WEA: Cloud cover via webcam: WEA: SC,HN,FD,KP,OV Clear skies. WEA: NL,LA,PT,BR Overcast. WEA: MK Unknown (night). WEA: No precipitation @ any site. 1608 All readbacks OK. 1633 MK readbacks OK. 1643 All readbacks OK. 1700-1701 *PT Autostowed due to power bump. Repointed. COM 100 1 1702 All readbacks OK. 1722 All readbacks OK. 1731 All readbacks OK. 1741 All readbacks OK. 1808 All readbacks OK. 1817 All readbacks OK. 1829 All readbacks OK. 1855 All readbacks OK. 1859 MK WEA: Reports clear skies. 1904 All readbacks OK. 1923 MK readbacks OK. 1932 All readbacks OK. 2014 All readbacks OK. 2024 All readbacks OK. 2051 MK readbacks OK. 2108 All readbacks OK. 2133 All readbacks OK. 2134-2307 *BR: The tape on Drive 2 was run off the reel REC 100 93 during a readback check. There is no tape on Drive 1 - out of tape. 2140 &BR: Left message on site tech's phone (Bob) - will also keep trying. 2143 All readbacks OK. 2215 Spoke with Bob at BR - will head out to site, but about an hour away. 2218 MK readbacks OK. 2235 All readbacks OK. 2244 All readbacks OK. 2327 MK readbacks OK. 2336 *BR bad readbacks: Drive 1, Tracks 21,22. All other readbacks OK. 2353 *LA bad readback: Drive 2, Track 07. *BR bad readbacks: Drive 1, Tracks 21,22. All other readbacks OK. 0000 Date is 2004JAN18/018. 0004 *BR bad readbacks: Drive 1, Tracks 21,22. All other readbacks OK. 0056 *BR bad readback: Drive 1, Track 22. All other readbacks OK. 0121 SC,HN readbacks OK. 0155 *BR bad readback: Drive 1, Track 22. All other readbacks OK. 0221 *BR bad readback: Drive 1, Track 22. All other readbacks OK. 0245 New operator is Paul Dyer. 0246 *BR Bad readbacks on drive 1, track 22. All others are ok. 0345 *BR Bad readbacks on drive 1, track 22. All others are ok. 0410 SC End of file. 0410 HN End of file. 0419 End. Downtime Summary: Total downtime : 650 min Percentage downtime of observing: 4.5% Average downtime per hour : 2.7 min Total scheduled observing time (# Antennas): 14290 min (10) 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.