VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BC139B
Observer:       M. Claussen
Project type:   VLBA
Obs filename:   bc139bcrd.*
Date/Day:       2004APR25/116
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
          %Raining at NL and MK.                                                
           VCLOCK and gps delta checks okay.                                    
          *OV experiencing numerous bad readback problems on     13882          
           drive #1; site does not have enough tape on hand                     
           that we can afford to abandon the tape on drive #1                   
           by swapping to drive #2.                                             
     0158  Begin.                                                               
0158-0211 *BR not observing, antenna experiencing over current   ACU    100   13
           faults on both AZ and EL motors. Site tech is                        
           investigating.                                                       
     0145  New operator is Cyrus M Reed.                                        
     0210 %BR site tech called, ready to start using antenna                    
           again.                                                               
     0341 *OV bad readbacks: Drive 1, Tracks 04,32.              13882          
           All other readbacks OK.                                              
     0346 *OV bad readback: Drive 1, Track 32.                   13882          
           All other readbacks OK.                                              
     0351 *OV bad readback: Drive 1, Track 32.                   13882          
           All other readbacks OK.                                              
     0356 *HN bad readback: Drive 2, Track 33.                                  
           All other readbacks OK.                                              
     0401 *OV bad readbacks: Drive 1, Tracks 25,32.              13882          
           All other readbacks OK.                                              
     0406 *OV bad readback: Drive 1, Track 32.                   13882          
           All other readbacks OK.                                              
     0411 *OV bad readbacks: Drive 1, Tracks 04,32.              13882          
          *FD bad readbacks: Drive 1, Tracks 31,33.                             
           All other readbacks OK.                                              
     0416 *OV bad readbacks: Drive 1, Tracks 04,32.              13882          
           All other readbacks OK.                                              
     0421 *OV bad readbacks: Drive 1, Tracks 04,32.              13882          
          *FD bad readback: Drive 1, Track 32.                                  
          *HN bad readback: Drive 1, Track 33.                                  
           All other readbacks OK.                                              
     0426 *OV bad readbacks: Drive 1, Tracks 04,32.              13882          
          *FD bad readback: Drive 1, Track 32.                                  
           All other readbacks OK.                                              
     0431 *OV bad readbacks: Drive 1, Tracks 04,32.              13882          
          *HN bad readback: Drive 1, Track 33.                                  
           All other readbacks OK.                                              
     1020  All readbacks OK.                                                    
     1027  All readbacks OK.                                                    
     1157  End.                                                                 


Downtime Summary:
	Total downtime : 13 min
	Percentage downtime of observing: 0.2%
	Average downtime per hour : 0.1 min

    Total scheduled observing time (# Antennas): 5990 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.