VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BH126A
Observer:       Harris, D.
Project type:   VLBA
Obs filename:   bh126acrd.*
Date/Day:       2004DEC23/358
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
     0933  Begin file                                                           
           VCLOCK check ok. SC at -0.173                                        
           UT1-UTC check ok (-0.50)                                             
           GPS delta < 10 us                                                    
           PT recording Mark V Bank A disc pack NRAO-052                        
           KP recording Mark V Bank A disc pack NARO-057                        
           MK recording Mark V Bank A disc pack NRAO-056                        
           Operator: T. Perreault                                               
0933-1334 *NL unclearable AZ brake fault. Antenna unpointable    15420  100  241
           called site tech. He said that the problem is most                   
     0937  likely due to the cold weather (current temperature                  
           is -16 C) and that any fix will have to wait until                   
           the temperature warms up a little bit.                               
     0940  Readback check ok                                                    
0941-0942 *SC AZ#2 armature over current error condition         ACU    100    1
           cleared by momentarily disabling the AZ axis.                        
     1049  Readback check ok                                                    
     1212  Readback check ok                                                    
     1318  NL site tech on site                                                 
     1322  Readback check ok                                                    
     1445  Phillip Hicks on duty Operator.                                      
           HN and FD have clouds/fog. MK and BR are dark. Rest                  
           of the sites have clear skies.                                       
     1544 *SC Dropped out of program as scheduled. Stowed.                      
     1613 %FD Weather: Solid overcast, freezing drizzle,                        
           and fog.                                                             
     1620 *HN  Dropped out of program as scheduled. Stowed.                     
     1634 %SC Started raining.                                                  
     1717 %MK Raining.                                                          
     1725 %MK Rain stopped.                                                     
     1729  Observing ended.                                                     
     1728  Widely varying system temperatures shown in plots                    
           at stations KP, LA, MK, NL, and SC.                                  
     1729  End.                                                                 


Downtime Summary:
	Total downtime : 242 min
	Percentage downtime of observing: 5.1%
	Average downtime per hour : 3.1 min

    Total scheduled observing time (# Antennas): 4760 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.