VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BC120DW
Observer:       Chatterjee, S.
Project type:   VLBA
Obs filename:   bc120dwcrd.*
Date/Day:       2004APR06/097
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Cyrus M. Reed.                                           
           VCLOCK and GPS DELTA OK.                                             
           UT1-UTC OK (-0.44).                                                  
           WEA: Cloud cover via webcam unavailable;                             
           WEA: night at all sites.                                             
           WEA: No recent precipitation at any site.                            
     0812  Begin observing. Antennas on source.                                 
0812-1012 *PT not observing due to scheduled maintenance.        SCH            
0812-0814 *BR EL brake fault - dis/enabled axis to clear.        ACU    100    2
0819-0820 *BR EL brake fault - dis/enabled axis to clear.        ACU    100    1
0824-0827 *SC antenna autostowed due to power failure.           COM    100    3
           Repointed - running on 150KW generator.                              
0843-0850 *SC AZ1 motor current jumped to 90A on restoration     ACU    100    7
           of commercial power. After some ACU resets and some                  
           other fiddling, was able to get motor current back                   
           under control and repoint.                                           
           No readback checks this project.                                     
     1012  End.                                                                 


Downtime Summary:
	Total downtime : 13 min
	Percentage downtime of observing: 1.1%
	Average downtime per hour : 0.6 min

    Total scheduled observing time (# Antennas): 1200 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.