VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BL105C
Observer:       Lobanov, A.
Project type:   VLBA
Obs filename:   bl105ccrd.*
Date/Day:       2004APR03/094
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Jim Ogle.                                                
          *Raining at LA and KP, KP may be sleet or snow.                       
           VCLOCK and gps delta checks okay.                                    
     0724  Begin.                                                               
0724-1522 *FD 4cm left FET#2 voltage intermittently out of       13674   17   81
           range, which affects the 4cm LCP data when it                        
           happens.                                                             
0724-1522 *PT unavailable for observing, ACU backplane bad and   13600  100  478
           the antenna cannot track accurately in elevation.                    
           Poor weather conditions at site are keeping the                      
           on-call tech from reaching site to investigate                       
           problem.                                                             
0724-0729 *KP 6cm may be experiencing RFI of some kind, the IFs  WEA    100    5
           are pegged out at maximum Total Power levels. The                    
           receiver is running slightly warm at the 50K stage                   
           but that should not be affecting the power levels                    
           this much.                                                           
0729-0733 *KP 4cm is experiencing the same problem as the 6cm,   WEA    100    4
           the IFs are pegged out at maximum Total Power. 4cm                   
           receiver is not running slightly warm though.                        
0733-0737 *KP 2cm showing the same problem as the other two      WEA    100    4
           though the Total Power levels are slightly below                     
           maximum instead of at maximum.                                       
0737-0752 *KP has changed sources but is still exhibiting the    WEA    100   15
           same problem. Going to be playing around with                        
           equipment to try and track down the problem. Data                    
           is probably no good anyway.                                          
     0746 *Attempting a snow dump at KP, maybe the feeds are                    
           being blocked (though the feed heaters should keep                   
           that from happening.)                                                
     0749 *KP antenna having high EL motor currents moving                      
           back up from the snow dump; there may be large                       
           amounts of snow in the dish and that's causing the                   
           problem. (Changing MF in earlier entries to WEA.)                    
0752-1522 *Shutting down observing at KP; there's no good        WEA    100  450
           data being collected and if there's that much snow                   
           in the dish it's not safe to continue pointing                       
           anyway.                                                              
     0758 *PT interestingly is also pegging out on its IF                       
           Total Power levels just like KP, even though                         
           neither site is obseving at the moment. PT also has                  
           snow and bad weather conditions which suggests it                    
           probably is the weather that's responsible.                          
     0804  Readbacks okay.                                                      
     0910  Readbacks okay.                                                      
0933-0934 *MK autostowed, commercial power glitch. Repointed.    COM    100    1
0936-0937 *MK autostowed again.                                  COM    100    1
     1106  Readbacks okay.                                                      
     1123  SC reports clear skies.                                              
     1146  Readbacks okay.                                                      
     1343 %HN, OV and BR sitecams show mostly cloudy to                         
           overcast conditions. Still raining at LA.                            
           NL and FD sitecams show clear conditions.                            
           SC sitecam not working; still dark at MK.                            
     1441  New operator is Paul Dyer.                                           
     1501  SC End of file.                                                      
     1522  End.                                                                 


Downtime Summary:
	Total downtime : 1039 min
	Percentage downtime of observing: 21.7%
	Average downtime per hour : 13.0 min

    Total scheduled observing time (# Antennas): 4780 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.