VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BW088F
Observer:       Walker, R. C.
Project type:   VLBA
Obs filename:   bw088fcrd.*
Date/Day:       2007APR23/113
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Alan Kerr                                                
           Weather: SC overcast; FD,LA,PT cloudy. OV windy.                     
           GPS delta (NL 8.8) UT1-UTC -0.10, vclock OK                          
     0039  Begin all sites except MK.                                           
0039-0059 *FD FRM FOCUS error requiring MASTER CLEAR reset.      20242   10    2
           The subreflector is sporadically setting up at                       
           incorrect FOCUS position after a source/position                     
           change in ELEVATION. This position is about 3.3                      
           counts off. Can command to the correct position                      
           by issuing a MASTER CLEAR reset and then doing a                     
           SKIP 0 to re-read the current scan. Downtime is                      
           estimated.                                                           
     0127  Begin at MK.                                                         
     0148  New operator: T. Perreault                                           
     0254 %NL wea: raining, elevated system temperatures                        
     0443  BR UPS battery alarm. Contacted oncall site tech,                    
           he said that it is a "non-event," that there is                      
           a logic problem with the charger and that the                        
           batteries are fully charged.                                         
     0855  SC, HN observing ends                                                
1016-1023 *KP autostowed following temporary loss of             COM    100    7
           commercial power. Repointed.                                         
     1018  NL observing ends                                                    
     1036  End.                                                                 


Downtime Summary:
	Total downtime : 9 min
	Percentage downtime of observing: 0.2%
	Average downtime per hour : 0.1 min

    Total scheduled observing time (# Antennas): 5970 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.