VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BC120DY
Observer:       Chatterjee, S.
Project type:   VLBA
Obs filename:   bj120dycrd.*
Date/Day:       2004APR22/113
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
     1039  Begin file                                                           
           VCLOCK check ok. SC at -0.150                                        
           UT1-UTC check ok                                                     
           GPS delta < 10 us                                                    
           Operator: T. Perreault                                               
1100-1120 %FD TSMPLOTs show system temperature "spike"           INT     13    2
           on channel 5 (1593.99 MHz, RCP). Suspect RFI.                        
1103-1104 *KP EL#2 armature overcurrent error message            13846  100    1
           cleared by momentarily disabling EL axis                             
     1121  SC wea: low overcast, no precipitation                               
1124-1240 *MK unclearable AZ#1 armature/electronic circuit       13870  100   76
           breaker fault condition. Site tech would not be                      
           able to make it to the site before the end of this                   
           file, and probably not until mid-way through the                     
           next file (BC120EG). Will call and consult with the                  
           oncall site tech.                                                    
     1132  MK site tech said that it is unsafe to work on this                  
           problem at night. He will be up there about 1600                     
           UT to work on the problem (this is 0600 HST).                        
           Removing antenna from the next two runs and stowing                  
           it.                                                                  
     1205  HN wea: low overcast, no precipitation                               
     1240  End.                                                                 


Downtime Summary:
	Total downtime : 79 min
	Percentage downtime of observing: 6.5%
	Average downtime per hour : 3.9 min

    Total scheduled observing time (# Antennas): 1210 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.