VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BM273B
Observer:       Dhawan, V.
Project type:   VLBA
Obs filename:   bm273bcrd.*
Date/Day:       2008JAN11/011
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
     1531  Begin file                                                           
           VCLOCK check ok. SC at -0.195                                        
           UT1-UTC check ok (-0.28)                                             
           GPS delta < 10us (FD: -5.6us)                                        
           Operator: T. Perreault                                               
     1531  Site weather via webcam:                                             
           SC, FD, LA, PT, KP, OV: clear                                        
           NL: overcast                                                         
           BR: still dark, looks to be overcast                                 
     1544  BR reports overcast with low cloud cover; dish has                   
           4" to 5" of snow on lower half and 1" to 2" on most                  
           of the upper half.                                                   
1724-1725 *SC momentary Mark5 communication lost.                OTHER  100    1
1725-1740 *SC Mark5 lost communication again - going to switch   OTHER  100   15
           to the pack in bank A.                                               
           Continuing problems with the Mark5 - getting                         
           repeated "communication lost" errors with the                        
           Mark5 unit. The Mark5 is cycling through RECORD to                   
           OFFLINE, IDLE, then back to MOUNTED/RECORD. When                     
           recording is resumed it is at a higher data rate                     
           than it should be. Have emailed Walter.                              
     1740  SC the Mark5 seems to have settled down once pack                    
           NRAO-000 was pulled from bank B. Something looks to                  
           be seriously wrong with that pack.                                   
     1929  HN observing ends                                                    
     1947  SC observing ends                                                    
     1949  End.                                                                 


Downtime Summary:
	Total downtime : 16 min
	Percentage downtime of observing: 0.6%
	Average downtime per hour : 0.4 min

    Total scheduled observing time (# Antennas): 2580 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.