VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BB231C
Observer:       Braatz, J.A.
Project type:   VLBI
Obs filename:   bb321ccrd.*
Date/Day:       2006DEC29/363
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK GB EB 

=UT-Time===Comment===============================================MF#===%AD==AMD=
     0405  Begin file                                                           
           VCLOCK check ok. SC at -0.133                                        
           UT1-UTC check ok (0.04)                                              
           GPS delta < 10 us                                                    
           Operator: T. Perreault                                               
0405-1357 *FD not observing. Broken AZ#1 drive axle.             19601  100  592
     0405 *LA wea: snowing, elevated system temperatures                        
0405-1357 *KP not observing due to winter storm,                 WEA    100  592
           there is at least 4"+ of snow in the dish. Internet                  
           communication with site is down, on dial backup.                     
           Antenna has been pulled from observing.                              
     0408  Begin at EB.                                                         
     0636  New operator is Jim Ogle.                                            
0715-0716 *Doing a snow dump at LA.                              WEA    100    1
0904-0941 *HN Mark5 unit suddenly having trouble, record state   REC    100   37
           is switching often between MOUNTED and RECORDING.                    
     0919 %High wind gusts at OV.                                               
     0931 *HN Mark5 offlined briefly to see if it would clear                   
           the problem, it didn't.                                              
     0935 *HN Mark5 offlined again, going to reboot unit.                       
     0946  HN Mark5 recording operating normally again.                         
1146-1149 *Doing another snow dump at LA.                        WEA    100    3
     1244 *Raining at SC.                                                       
1318-1322 *Snow dump at LA.                                      WEA    100    4
     1349 *SC reports broken low clouds, wet conditions.                        
     1357  End.                                                                 


Downtime Summary:
	Total downtime : 1229 min
	Percentage downtime of observing: 20.8%
	Average downtime per hour : 12.5 min

    Total scheduled observing time (# Antennas): 5920 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.