VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BB191
Observer:       R. Barvainis
Project type:   VLBI
Obs filename:   bb191crd.*
Date/Day:       2004DEC26/361
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK Y GB EB

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Jim Ogle.                                                
           VCLOCK and gps delta checks okay.                                    
           PT writing to Mk5 disc pack NRAO-052.                                
           KP writing to Mk5 disc pack NRAO-063.                                
           MK writing to Mk5 disc pack NRAO-056.                                
          %Sitecam weather: SC partly cloudy, HN overcast, NL                   
           hazy, FD clear. (Still dark everywhere else.)                        
     1404  Begin at all sites except MK, which starts later.                    
1404-1417 *SC rotation out of position, will not go to           15359  100   13
           commanded positions.                                                 
     1409  Readbacks okay.                                                      
1416-1417 *PT autostowed, commercial power glitch. Repointed.    COM    100    1
     1443  Begin at MK.                                                         
1453-1454 *PT autostowed again. Repointed.                       COM    100    1
     1452  Readbacks okay.                                                      
     1455 %Sitecam weather updated: LA and PT mostly clear, KP                  
           high thin clouds, OV cloudy. Still dark at BR and                    
           MK.                                                                  
     1539  Readbacks okay.                                                      
     1558  Readbacks okay.                                                      
     1609  Readbacks okay.                                                      
     1654  Readbacks okay.                                                      
     1725  PT now writing to Mk5 disc pack NRAO-055.                            
     1808 %OV reports cloudy skies.                                             
     1810 %Site cam weather updated: NL clear, PT high                          
           thin clouds, BR overcast and foggy, MK clear.                        
     1826  Readbacks okay.                                                      
     1839 %HN reports overcast conditions, low clouds, light                    
           snow and some snow in dish.                                          
     1913  LA reports scattered high clouds.                                    
1944-1947 *LA tape being changed; site only has one working      15418  100    3
           drive so site tech has to put up a fresh tape.                       
     2020  Readbacks okay.                                                      
     2050  Readbacks okay.                                                      
     2157  Readbacks okay.                                                      
     2205  Readbacks okay.                                                      
2308-2312 *PT Mk5 unit not recording. Started recording          REC    100    4
           again at start of next write scan.                                   
     2331 *FD bad readbacks on tracks 23 and 24, drive #1.                      
           Other sites okay.                                                    
     2338  End at EB.                                                           
     2345  End at Y.                                                            
     2346  Readbacks okay.                                                      
2346-2350 *SC AZ#2 armature overcurrent fault. Briefly           AELEC  100    4
           disabled the AZ axis to clear error then re-enabled                  
           and resumed pointing.                                                
     2400  End.                                                                 


Downtime Summary:
	Total downtime : 26 min
	Percentage downtime of observing: 0.4%
	Average downtime per hour : 0.2 min

    Total scheduled observing time (# Antennas): 6556 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.