VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BK103A
Observer:       Kemball, A.J.
Project type:   VLBA
Obs filename:   bk103acrd.*
Date/Day:       2003DEC20/354
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK 

=UT-Time===Comment===============================================MF#===%AD==AMD=
     0548  Begin file. BR and MK join later                                     
           VCLOCK check ok. SC at -0.162                                        
           UT1-UTC check ok                                                     
           GPS delta < 10 us                                                    
           Operator: T. Perreault                                               
0548-0553 *PT problems starting the file at the site. Program    SW     100    5
           started up ok but no monitor data were coming back                   
           from the station VME. Sent a RCMD REBOOT command,                    
           but station VME got hung up in the reboot process.                   
           Had to call in and do a reboot via the sensaphone.                   
0548-0601 *SC subreflector out of position in ROTATION.          13057  100   13
           Would not get to commanded position (213.6), would                   
           stop moving roughly 3 counts away (210) and then                     
           get a ROTATION MOTION ANALYSIS FAULT. Did a                          
           MASTER CLEAR reset / reload observing scan several                   
           times, subreflector would not get any closer than 3                  
           counts from the commanded position. Attempted to                     
           command subreflector off in ROTATION, even then it                   
           stopped about 3 counts out of the commanded                          
           position. Site tech Pete Allen is on site working                    
           on other stuff, called him up. He is currently                       
           working on the subreflector.                                         
     0601  SC site tech Pete was able to drive the                              
           subreflector around in MANUAL with no problems at                    
           all, but in COMPUTER control it was "sluggish". He                   
           has locked the subreflector in ROTATION at the 7mm                   
           position. Between files he will try a couple of                      
           more things to see if he can correct the problem.                    
           Passed along Eric Carlow's home & cell phone number                  
           to Pete. I informed Pete that Paul was having                        
           problems earlier with ROTATION WEST MOTOR OVER                       
           SPEED errors that took multiple MASTER CLEAR resets                  
           to clear.                                                            
     0614  Readback check ok                                                    
     0639  New operator is Jim Ogle.                                            
     0641  Readbacks okay.                                                      
     0708  Readbacks okay.                                                      
     0734  Readbacks okay.                                                      
     0737 *Snowing at BR.                                                       
     0801  Readbacks okay.                                                      
     0827  Readbacks okay.                                                      
     0853  Readbacks okay.                                                      
     0919  Readbacks okay.                                                      
     0945  Readbacks okay.                                                      
     1011  Readbacks okay.                                                      
     1038  Readbacks okay.                                                      
     1104  Readbacks okay.                                                      
     1130  Readbacks okay.                                                      
     1149  End.                                                                 


Downtime Summary:
	Total downtime : 18 min
	Percentage downtime of observing: 0.5%
	Average downtime per hour : 0.3 min

    Total scheduled observing time (# Antennas): 3610 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.