VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BD087L
Observer:       V. Dhawan
Project type:   VLBA
Obs filename:   bd087lcrd.*
Date/Day:       2004DEC20/355
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Jim Ogle.                                                
           VCLOCK and gps delta checks okay.                                    
           LA writing to Mk5 disc NRAO-045.                                     
           PT writing to Mk5 disc NRAO-036.                                     
           KP writing to Mk5 disc NRAO-041.                                     
     0118  Begin.                                                               
0118-0639 *OV 4cm receiver warm.                                 15394   50  160
     0157  Readbacks okay.                                                      
     0227  PT now writing to Mk5 disc NRAO-040.                                 
0237-0320 *HN rotation position error.                           15412  100   43
     0238  Readbacks okay.                                                      
     0242  New operator is Paul Dyer.                                           
          *HN Continued efforts to correct FRM have failed.                     
           It will come close when manually commanded, but                      
           then drift far away. (~30degrees off.)                               
     0318  All readbacks ok.                                                    
     0320 *HN WEA: Snowing.                                                     
     0320  HN FRM locked at 2cm position.                                       
0358-0506 *HN FRM rotation will not lock at 4cm.                 15412  100   68
     0358  All readbacks ok.                                                    
     0438  All readbacks ok.                                                    
     0506  HN FRM locks at 2cm.                                                 
0517-0616 *HN FRM rotation not locking at 4cm again.             15412  100   59
     0616  HN FRM locked at 2cm.                                                
     0639  End.                                                                 


Downtime Summary:
	Total downtime : 330 min
	Percentage downtime of observing: 10.3%
	Average downtime per hour : 6.2 min

    Total scheduled observing time (# Antennas): 3210 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.