VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BS133D
Observer:       Savolainen, T.
Project type:   VLBA
Obs filename:   bs133dcrd.*
Date/Day:       2003DEC18/352
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK 

=UT-Time===Comment===============================================MF#===%AD==AMD=
     2353  Begin file                                                           
           VCLOCK check ok. SC at -0.153                                        
           UT1-UTC check ok                                                     
           GPS delta < 10 us                                                    
           Operator: T. Perreault                                               
2353-0752 *MK recurring 13cm LEFT FET#2 voltage out of range     12940    6   28
           error. LCP data affected.                                            
     0000  Date is 2003DEC19/353.                                               
     0008  Readback check ok                                                    
0028-0752 *SC subreflector out of position in ROTATION at 1cm    13057   13   57
           position (303.7). Drifts off by 2 counts then gets                   
           a ROTATION MOTION ANALYSIS FAULT condition. At the                   
           subsequent frequency change (1cm to 6cm) the                         
           subreflector fails to move. Have to do a MASTER                      
           CLEAR reset and reload the observation scan before                   
           the subreflector will move in both FOCUS and                         
           ROTATION. Subreflector sets up fine in all other                     
           frequencies.                                                         
           The problem is happening when going from 13cm to                     
           1cm. The 4cm to 1cm scans are fine, subreflector                     
           sets up and locks in ROTATION.                                       
     0107  Readback check ok                                                    
     0122  Readback check ok                                                    
     0220  Readback check ok                                                    
     0241  Readback check ok                                                    
     0313  Readback check ok                                                    
     0329 *SC bad readback drive 2 tracks 26,30;                                
           all other sites ok                                                   
     0403  Readback check ok                                                    
     0423  Readback check ok                                                    
     0454  Readback check ok                                                    
     0515  Readback check ok                                                    
     0613 *MK bad readback drive 2 tracks 32,33;                 13059          
           all other sites ok                                                   
     0633 *MK bad readback drive 2 track 33;                     13059          
           all other sites ok                                                   
     0639  New operator is Jim Ogle.                                            
     0646 *MK bad readbacks on track 33. Others okay.            13059          
     0717 *MK bad readbacks on track 33. Others okay.            13059          
     0738 *MK bad readbacks on track 33. Others okay.            13059          
     0752  End.                                                                 


Downtime Summary:
	Total downtime : 85 min
	Percentage downtime of observing: 1.8%
	Average downtime per hour : 1.1 min

    Total scheduled observing time (# Antennas): 4790 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.