From observe@banshee.VLA.NRAO.EDU Sun Apr 27 04:42:20 1997 X-Sender: observe@banshee.vla.nrao.edu (Unverified) Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="============_-1349984786==_============" Date: Sun, 27 Apr 1997 10:42:13 +0000 To: kblundell1@physics.oxford.ac.uk, vlbiobs@NRAO.EDU From: VLA Operators Subject: VLA Observing Log for project BB070 on 97Apr27. Content-Length: 4696 --============_-1349984786==_============ Content-Type: text/plain; charset="us-ascii" An ascii text copy of your VLA Observing Log follows: --============_-1349984786==_============ Content-Type: text/plain; name="BB070_97Apr27_1719.Text"; charset="us-ascii" Content-Disposition: attachment; filename="BB070_97Apr27_1719.Text" ************************************************************************ Program: BB070 Subarray(s): #1 Observer(s): Blundell Operator(s): Jim Nieri Date: Sunday, Apr 27 1997 Configuration: B User Number: 600 Decommissioned: 4 Source File(s): 275BB70 VLBI Ref. Ant: 8 Observing Mode: Mixed Modes VLB Antenna Pad: BW2 ** Weather Information ** Time Dew Point Temp. Wind Bar. Pressure 97Apr27 04:00:36 1.2C 6.4C e at 4 m/s 790.7mbars 97Apr27 05:58:04 0.7C 4.5C SE @ 3 m/s 791mbars Remarks: Operator comments for the above weather entries. Sky Cover is 35%. Cumuloform type. Sky Cover is 50%. Cumuloform type. ** Visibility Tape Information ** Tape # File # Time of Final Record: N8437 1 ** Monitor Tape Information ** Tape # File # Time of Final Record: N8420 7 Antenna(s) Used: 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ** Operator Comments ** 97Apr27 03:50:22 Starting program: BB070, observe file: 275BB70. 97Apr27 03:51:30 On source 1404+286 with all available antennas. The band(s) used is(are) L X band(s). 97Apr27 03:50:22 Antenna(s) 9 do not have good baseline positions determined for them because they were moved to their present location recently. In the analysis of your data would you please check for any baseline errors especially on these antennas and let the Data Analysts (email - analysts@nrao.edu) know what you find when there are significant baseline errors. Thank you in advance. 97Apr27 04:00:00 The First and only VLBI tape is VLBA 0499, 5849. It is turning in the right direction , on drive #2. 97Apr27 04:35:00 I noticed that some track values were missing on the DAS overlay. I called vlba ops and they ( J. Ogle) said that he is not sure why it is that way. It may be something in programming. I reported this condition during the my last VLBI observing schedule. The same answer was given. Unsure as to the impact on data quality. 97Apr27 04:46:00 The Phasing is good from the begining of the file at < 5 RMS. 97Apr27 05:07:34 The telescope operator made an inspection of the VLB instrumentation. No problems found. 97Apr27 05:11:10 Form #: Other # of Ants: 0.00 Downtime: Antenna(s) 27 - VLA CORREL (VLA Correlator Harware) Problem(s); There was an Integrator error in DCS 1B, Quad IF/1, posible record loss. Observing Data: Corrupted 97Apr27 05:58:06 **** K. Michael Malolepszy is your operator. **** 97Apr27 06:05:29 The telescope operator made an inspection of the VLB instrumentation. No problems found. 97Apr27 06:09:27 Ran a backup on the Modcomp partition where observe files are kept. 97Apr27 06:23:00 Array is phasing at 4.8 - 5.9 degrees RMS. 97Apr27 06:43:00 The gaurd is reporting light rain. 97Apr27 07:02:21 The telescope operator made an inspection of the VLB instrumentation. No problems found. 97Apr27 07:12:00 Array is phasing at 2.9 - 3.2 degrees RMS. 97Apr27 08:01:23 The telescope operator made an inspection of the VLB instrumentation. No problems found. 97Apr27 08:29:40 Array is phasing at 3.1 - 3.6 degrees RMS. 97Apr27 08:41:00 - 97Apr27 08:42:40 Form #: Other # of Ants: 1.00 Downtime: 1.67 Antenna(s) 16 - FRONT END (Front end) Problem(s); Front end didn't set up properly after source change. A SKIP was done to correct this while on this "VA" source. Observing Data: Lost. 97Apr27 08:44:50 Array is phasing at 3.9 - 4.3 degress RMS. 97Apr27 09:06:16 The telescope operator made an inspection of the VLB instrumentation. No problems found. 97Apr27 10:09:48 The telescope operator made an inspection of the VLB instrumentation. No problems found. 97Apr27 10:19:20 End of program BB070. Total Downtime = 1.7 minutes (0.0% of total time). AsciiFileOut Version: 1.11 -- Version Date: June 20, 1996 --============_-1349984786==_============--