VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BL105G
Observer:       Lobanov, A.
Project type:   VLBA
Obs filename:   bl105gcrd.*
Date/Day:       2004APR08/099
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 (-0.45).                                                  
           WEA: Cloud cover via webcam unavailable;                             
           WEA: Night at all sites.                                             
           WEA: Precipitation at LA - other sites dry.                          
     0704  Begin observing. All antennas on source.                             
0704-1236 %FD SYN2 500MHz reference is flaging as out of         13766          
           range at 6.32. Data appears unaffected.                              
0704-1503 %FD ACU is flaging, though there is nothing wrong.     13746          
           The cause is most likely due to MCB errors arising                   
           from the bypass of the failed pedestal room UPS.                     
0704-1503 *PT TSMPLOTs show that virtually all records           ACU    100  479
           for this antenna are flagged bad due to a EL                         
           tracking error of up 50 seconds of arc.                              
     0744 *LA bad readback: Drive 2, Track 02.                                  
          *FD bad readback: Drive 1, Track 04.                                  
           All other readbacks OK.                                              
0748-0750 *LA dropped out of point due to power failure.         COM    100    2
           Repointed.                                                           
     0753 %LA wea: raining                                                      
     0851  All readbacks OK.                                                    
1003-1004 *PT dropped out of point due to power failure.         COM    100    1
           Repointed.                                                           
     1046 *LA bad readback: Drive 2, Track 02.                                  
           All other readbacks OK.                                              
1035-1228 %HN communication down. Using mike modem -                            
           traceroute shows traffic reaching site, but not                      
           VME.                                                                 
     1127 *LA bad readbacks: Drive 2, Tracks 02,22.                             
           All other readbacks OK.                                              
     1333  New operator: T. Perreault                                           
     1341  BR wea: clear, no precipitation                                      
     1411  Readback check ok                                                    
     1421  PT site tech called, informed him about the 50" of                   
           arc tracking error in EL.                                            
     1443  SC observing ends                                                    
     1447  KP wea: clear, no precipitation                                      
     1503  End.                                                                 


Downtime Summary:
	Total downtime : 482 min
	Percentage downtime of observing: 10.1%
	Average downtime per hour : 6.0 min

    Total scheduled observing time (# Antennas): 4790 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.