VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BW088U
Observer:       Walker, R.C.
Project type:   VLBA
Obs filename:   bw088ucrd.*
Date/Day:       2008JAN21/021
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Jim Ogle.                                                
           VCLOCK and gps delta checks okay.                                    
          %High wind gusts at KP.                                               
     0641  Begin.                                                               
0641-0653 *KP Mark5 record state flip-flopping between           REC    100   12
           RECORDING and MOUNTED. Site is short on disk space                   
           for the weekend so I don't want to switch to the                     
           other pack unless it's absolutely necessary.                         
     0644 *KP Mark5 offlined then onlined, didn't clear up       REC            
           problem.                                                             
     0649 *Rebooted KP Mark5 unit.                               REC            
     0652 *KP Mark5 back up and recording, though at the wrong   REC            
           data rate (512 instead of 256).                                      
     0653  Restarted scan at KP, Mark5 now recording at the                     
           right data rate.                                                     
     0719 *Raining at SC.                                                       
     0743 %PT HC2 FIFO errors. Shouldn't affect anything at      21522          
           this data rate.                                                      
0834-1413 *SC all kinds of ACU error messages suddenly,          22100  100  339
           including "vertex room emergency stop" and "EL stow                  
           lock engaging". Getting several other error                          
           messages concerning EL. Putting antenna in standby.                  
     0838 &SC tech Greg believes a water leak has shorted out    22100          
           something. He will investigate and see if he can                     
           clear the problem or get around it.                                  
     1003 *SC tech reports he can't do any more right now, he    22100          
           needs to work out on the antenna but there's no                      
           lights on the structure so he has to wait until                      
           after the sun comes up.                                              
     1005 *Since it's going to be a while yet, I'm shutting      22100          
           down the observing at SC.                                            
     1144 %PT HC2 FIFOs again.                                   21522          
     1413  SC would have ended here                                             
     1438  New operator is Heidi Gerhardt                                       
     1458  HN ends                                                              
     1545  SC update: site tech called and said water got into   22100          
           the junction box and shorted out the EL #2 motor                     
           and is working on the repair.                                        
     1622  NL ends                                                              
     1641  End.                                                                 


Downtime Summary:
	Total downtime : 351 min
	Percentage downtime of observing: 5.8%
	Average downtime per hour : 3.5 min

    Total scheduled observing time (# Antennas): 6000 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.