VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BB172AC
Observer:       Brunthaler, A.
Project type:   VLBA
Obs filename:   bb172accrd.*
Date/Day:       2004AUG23/236
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:                                         
           WEA: BR Stratocumulus (100%). MK Clear skies.                        
           WEA: Other sites unknown (night).                                    
           WEA: No recent precipitation at any site.                            
     0335  Begin observing. All antennas on source.                             
0335-0500  All readbacks OK.                                                    
0850-0940  All readbacks OK.                                                    
     0850  All readbacks OK.                                                    
     0906 %BR: The Readback task on the VME failed and was                      
           restarted automatically. It appears that it may have                 
           attempted to do a readback check on Drive 2, which                   
           has already unloaded - there is a "Motion attempted                  
           without tape loaded" error for Drive 2 for the same                  
           time.                                                                
     1051  SC readbacks OK.                                                     
     1431  KP WEA: Scattered high clouds, none, dry.                            
     1530  End.                                                                 


Downtime Summary:
	Total downtime : 0 min
	Percentage downtime of observing: 0.0%
	Average downtime per hour : 0.0 min

    Total scheduled observing time (# Antennas): 7150 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.