VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BG169C
Observer:       Greenhill, L.
Project type:   VLBI
Obs filename:   bg169ccrd.*
Date/Day:       2007JAN24/024
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK Y GB 

=UT-Time===Comment===============================================MF#===%AD==AMD=
     0435  Begin at GB. Other antennas join later.                              
           Vclock checks OK.  Y is 0.108.                                       
           UT1-UTC checks OK. (0.01)                                            
           GPS delta <10us.                                                     
           Operators are Betty Ragan and Tony Perreault.                        
     0445  Begin at VLBA sites.                                                 
0445-1300 *SC not oberving. Maser is broken. Awaiting parts.     19738  100  495
     0510  Begin at Y.                                                          
           BBC 7 total power is ~20% of normal. LO frequency                    
           is out of range at 651.46 MHz.                                       
     0641  New operator is Jim Ogle.                                            
     0643 %HN dew point is reading slightly higher than air      WEAST          
           temperature, pointing equation may be affected.                      
     1002 %High wind gusts at KP.                                               
1102-1103 *FD focus motion analysis fault.                       FRM    100    1
1121-1122 *FD focus motion analysis fault.                       FRM    100    1
1241-1244 *FD focus position error.                              FRM    100    3
     1300  End at all VLBA sites and GB.                                        
     1330  End.                                                                 


Downtime Summary:
	Total downtime : 500 min
	Percentage downtime of observing: 8.5%
	Average downtime per hour : 5.1 min

    Total scheduled observing time (# Antennas): 5885 min (11)

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.