VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BL137A
Observer:       Lister, M.
Project type:   VLBA
Obs filename:   bl137acrd.*
Date/Day:       2006FEB12/043
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Sonja Mendoza.                                           
           SC writing to Mk5 disk NRAO-027, bank A.                             
           HN writing to Mk5 disk NRAO-140, bank A.                             
           NL writing to Mk5 disk NRAO-152, bank B.                             
           FD writing to Mk5 disk NRAO-036, bank B.                             
           LA writing to Mk5 disk NRAO-091, bank A.                             
           PT writing to Mk5 disk NRAO-059, bank A.                             
           KP writing to Mk5 disk NRAO-153, bank A.                             
           OV writing to Mk5 disk NRAO-071, bank A.                             
           BR writing to Mk5 disk NRAO-135, bank B.                             
           MK writing to Mk5 disk NRAO-117, bank B.                             
           Vclock, GPS delta and UT1-UTC time checks all ok.                    
          %NL WEA: Recent snow showers, there may be some snow                  
           in the dish.                                                         
     0520  Begin observation. HN and SC join later.                             
     0520 %FD MASER temp is slowly rising due to HVAC problems                  
           at the site. Site tech notified and monitoring.                      
           Fluctuating maser temp could affect data.                            
           Maser temp is currently at 24.7C.                                    
     0542  HN joins observation.                                                
     0551  SC joins observation.                                                
0555-0900 *NL FRM sometimes will not drive to the correct        FRM     10   18
           spot in rotation when going from 2cm to 4cm scans.                   
           Am able to manually drive to the right location.                     
           Downtime estimated.                                                  
1024-1117 *SC AZ #2 armature overcurrent; can't clear, antenna   17652  100   53
           placed in STANDBY; probable blown fuse. Site tech                    
           contacted and enroute to site.                                       
     1106 %FD Maser temp peaked at 28.2C, now slowly                            
           dropping.                                                            
     1235 *HN WEA: Precipitation starting. Snowing.                             
     1409 %FD Maser temp now 27.5C.                                             
     1409 %MK WEA: Precipitation starting.                                      
1412-1416 *HN WEA: Initiating snow dump routine.                 WEA    100    4
     1430  Operator is Anthony Sowinski.                                        
1444-1445 *PT Delay after setup scan before Mk5 began writing    REC    100    1
           data                                                                 
     1524 %FD Maser temp now 26.1 C.                                            
     1525  OV recording on NRAO-077, bank B.                                    
     1608  BR recording on NRAO-052, bank A.                                    
     1706 %FD Maser temp now 20.6 C.                                            
     1848  SC AZ#2 Armature over current. Site tech called.      17653          
1903-1906 *HN Dumping snow from dish.                            WEA    100    3
1908-2014 *SC Stowed, fuse replaced, repointed.                  17653  100   66
     1955  MK now recording on NRAO-143, bank A.                                
2154-2156 *KP Power glitch, auto-stowed, repointed.              COM    100    2
2330-0519 *KP Power out, antenna stowed. On generator.           COM    100  349
     2233  MK High winds.                                                       
2243-2244 *SC Power glitch, auto-stowed, repointed.              COM    100    1
     2315 *KP Still on generator power, removed from observing.  COM            
     0000  Date is 2006FEB13/044.                                               
     0049  HN now recording on NRAO-076, bank B.                                
0218-0220 *FD Power glitch, autostowed, repointed.               COM    100    2
     0250  Operator is Sonja Mendoza.                                           
     0449  MK leaves observation.                                               
     0515 %FD Maser temp is 22.8C.                                              
     0519  End.                                                                 


Downtime Summary:
	Total downtime : 499 min
	Percentage downtime of observing: 3.5%
	Average downtime per hour : 2.1 min

    Total scheduled observing time (# Antennas): 14390 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.