VERY LONG BASELINE ARRAY OBSERVING LOG -------------------------------------- Project: BA066 Observer: K. Asada Project type: VLBA Obs filename: ba066crd.* Date/Day: 2002DEC15/349 Ants Used: SC HN NL FD LA PT KP OV BR MK =UT-Time===Comment===============================================MF#===%AD==AMD= Operator is Paul Dyer. VCLOCK and GPS Delta are ok. 1006 Begin at all stations except MK. 1006-1802 *HN 4cm RCP Tsys is 1.75 X LCP. 10229 16 76 1010 Begin at MK. 1107-1108 *BR Multiple formatter errors. Cleared with reset. 10358 100 1 1111-1112 *BR Multiple formatter errors. Cleared with reset. 10358 100 1 1114-1116 *BR Multiple formatter errors. Cleared with reset. 10358 100 2 1118 *OV WEA: Wind gusts > 35mph. 1119-1120 *BR Multiple formatter errors. Cleared with reset. 10358 100 1 1130-1132 *BR Multiple formatter errors. Cleared with reset. 10358 100 2 1143-1144 *BR Multiple formatter errors. Cleared with reobs. 10358 100 1 1202 All readbacks ok. 1314 *BR Multiple formatter errors. Cleared with reobs. 10358 Also at 1305, 1252, 1248, 1239, 1228, 1221, 1205, and 1159 and 1153. Forceing a reread of the scan clears the errors. In each case I was able to clear them within a few seconds. 1347 All readbacks ok. 1354 *BR Multiple formatter errors. Cleared with reobs. 10358 Also at 1449,1345,1342,1338,and 1331. Cleared as before. 1424 *BR Multiple formatter errors. Cleared with reobs. 10358 Also at 1413 and 1403. 1432 New operator: T. Perreault 1512 BR called Steve Durand about the formatter errors 10358 (still happening about every 5 minutes or so). He will come in around 1630 UT (9:30 AM local) to talk with the site tech about swapping some boards. Called oncall site tech Mark Hofmann, he will be at the site by 1630 UT. 1554 Readback check okay 1602 HN wea: broken low clouds, no precipitation 1634-1724 *BR site tech Mark Hofmann and Steve Durand are 10358 100 50 working on the formatter problem. To do this, the formatter will have to be removed and reset. While data are being recorded the quality is questionable at best. 1709 PT wea: overcast, no precipitation 1716 SC observing ends. 1724 BR Mark and Steve have determined that the site 10358 needs a new formatter. Steve thinks that the data are okay, but will look into the FIFO empty errors to verify that the data are good. 1745 BR wea: scattered high clouds, no precipitation 1802 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