VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BG176F
Observer:       Gabanyi, Krisztina
Project type:   VLBA
Obs filename:   bg176fcrd.*
Date/Day:       2008FEB21/052
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
     0540  Begin file                                                           
           VCLOCK check ok. SC at -0.166                                        
           UT1-UTC check ok (-0.32)                                             
           GPS delta < 10us (MK: -4.7us)                                        
           Operator: T. Perreault                                               
0540-1141 *SC BBC1 is acting strange in that sporadically        22270   13   46
           the TOTAL POWER and SWITCHED POWER values for both                   
           upper side band and lower side band will be                          
           identical (i.e., TP for both side bands will be the                  
           same, SP for both side bands will be the same) with                  
           a corresponding out of range system temperature for                  
           channel 1. I have serious doubts that any data from                  
           this BBC will be good.                                               
0540-1141 *NL Subreflector not reaching 4cm position in          FRM     33  119
           ROTATION. Suspect this is due to cold weather (-16                   
           C) and possible ice on the feed.                                     
     0645  Operator is A. Sowinski.                                             
     0810 *PT Precipitation.                                                    
     1112  End at SC.                                                           
     1113  PT Windy.                                                            
     1141  End.                                                                 


Downtime Summary:
	Total downtime : 165 min
	Percentage downtime of observing: 4.6%
	Average downtime per hour : 2.7 min

    Total scheduled observing time (# Antennas): 3610 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.