From observe@aoc.nrao.eduMon Aug 18 09:10:08 2003
Date: Mon, 18 Aug 2003 09:08:33 +0000
From: VLA Operations <observe@aoc.nrao.edu>
To: vlbiobs@nrao.edu, ihoffman@zia.aoc.nrao.edu
Subject: VLA Observing Log for project BH102H on 03Aug18.

An ascii text copy of your VLA Observing Log follows:

************************************************************************
Program:       BH102H                Subarray(s):          #2
Observer(s):   A Cohen               Operator(s):          Jim Nieri
Date:          Monday, Aug 18 2003   Configuration:        A
User Number:   600                   Decommissioned:       15
Source File(s):   585H102H           VLBI Ref. Ant:        11
Observing Mode:  Single Dish         VLB Antenna Pad:      AW5


API (Atmospheric Phase Interfermeter) information can be found at
http://www.vla.nrao.edu/astro/guides/api/
** Weather Information **
Time (IAT)     Dew Point (C)   Temp. (C)    Wind             Bar. Pressure
(mbar)    API RMS Phase
03Aug18 02:04  9.8C            20.5C        sw at 1 m/s      791.9mbars
50
03Aug18 02:47  10.4C           19.6C        sw at 4 m/s      792.2mbars
19
03Aug18 05:52  9.7C            15.6C        SW at 2.1 m/s    793.2mbars
84.7

    Operator comments for the above weather entries.
     Sky Cover is 75%. Cumuloform type. Area Shwrs
     Sky Cover is 65%. Cumuloform type. Area Shwrs
     Sky Cover is 50%. Cumuloform type.

** Visibility Tape Information **
Tape #                 File #                  Time of Final Record:
   N18868               1                      03Aug18 at 3:33:43
   N18869               1                      03Aug18 at 6:32:39
   N18870               1                      03Aug18 at 7:55:06
   N18873               1

** Monitor Tape Information **
Tape #                 File #                  Time of Final Record:
   N18820               7

Antenna(s) Used:
 11

** Operator Comments **

03Aug18 01:27:34
     Starting program: BH102H,  observe file:  585H102H.

03Aug18 01:31:00
     On source 3C286 with all available antennas.
     The band(s) used is(are) L   band(s).

03Aug18 01:50:00
     The Recording was switched to #2 recorder due to  a bad head on
     Rec #1. Documentation and execution of a Maint. Form to be done by VLBI
     Operator. Data may be lost.

03Aug18 02:50:19
     The telescope operator made an inspection of the VLB instrumentation.
     No problems found.

03Aug18 01:27:34 - 03Aug18 01:50:00
   Form #: C112191           # of Ants: 1.00               Downtime: 22.43
      - VLBA REC (VLBA recorder, formatters & plybk
     drives) Problem(s); The Recorder #1 has a bad head, will not
     record. The recording was switched to #2. Observing Data: Lost

03Aug18 04:18:35
     The telescope operator made an inspection of the VLB instrumentation.
     No problems found.

03Aug18 05:09:21
     The telescope operator made an inspection of the VLB instrumentation.
     No problems found.

03Aug18 05:52:40
     **** Greg Patterson is your operator. ****

03Aug18 05:59:57
     Ran a backup on the Modcomp partition where observe files are kept.

03Aug18 07:55:06 - 03Aug18 08:13:32
   Form #: Software          # of Ants: 1.00               Downtime: 18.43
     VLA ONLINE (VLA Array Control Computer) Problem(s); The
     online system encountered an unrecoverable error while processing
     the label on the next drive while switching tapes.  Contacted Ken
     Sowinski who advised a system reboot. Observing Data: Lost

03Aug18 08:13:32
     Note: the system is back up, the antenna is on source, and data is now
     dumping to tape once again.

03Aug18 08:38:54
     The telescope operator made an inspection of the VLB instrumentation.
     No problems found.

03Aug18 09:00:32
     End of program BH102H.  Total Downtime = 40.9 minutes (0.3% of total
time).


AsciiFileOut Version: 1.11 -- Version Date: June 20, 1996