VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BC159
Observer:       Claussen. M.
Project type:   VLBA
Obs filename:   bc159crd.*
Date/Day:       2006JAN23/023
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK Y 

=UT-Time===Comment===============================================MF#===%AD==AMD=
     1330  Begin file.                                                          
           VCLOCK check ok. SC at -0.105                                        
           UT1-UTC check ok.                                                    
           GPS delta < 10 us                                                    
           Mark5 recording status:                                              
           HN bank B pack NRAO-144                                              
           FD bank B pack NRAO-128                                              
           LA bank A pack NRAO-042                                              
           PT bank B pack NRAO-148                                              
           KP bank B pack NRAO-008                                              
           BR bank A pack NRAO-141                                              
           MK bank B pack NRAO-056                                              
           SC, NL, OV, Y on tape                                                
           Operator: T. Perreault                                               
1330-1335 *SC,NL,OV: the observe files that were sent out to     HUERR  300   15
           these sites were set up to write to tape and not                     
           to disc. When data began to be recorded, the Mark5                   
           units were still ONLINE. The initial 5 minutes of                    
           monitor data on the tape for each of these sites                     
           will be bad. The observe file for PT and MK was                      
           also supposed to write to tape; PT had no tapes                      
           mounted and AUTOALLOCATE complained. I was able to                   
           convert the files for PT and MK from tape to disc                    
           recording and sent the files out to the sites before                 
           observing started.                                                   
     1330  HN wea: snowing                                                      
1330-2132 %FD at the beginning of each source, the Mark5         17550   10   48
           unit is reformatting the formatter, causing the                      
           Mark5 to go into a PAUSE state where data are not                    
           recorded.                                                            
1330-2132 %KP there may be an issue with hard drive 6            17552          
           in pack NRAO-008                                                     
     1336 %NL bad readback drive 1 track 8; all other sites ok                  
     1404  HN wea: overcast, heavy snow                                         
     1413  Readback check ok                                                    
     1438  Begin MK.                                                            
1452-1454 *NL: power hit autostow, repointed.                    COM    100    2
     1547  KP writing on NRAO-062, Bank A.                                      
     1640  Readbacks ok.                                                        
     1647 %NL: snow.                                                            
     1718  Readbacks ok.                                                        
     1734  LA writing on NRAO-063, Bank B.                                      
     1832 %NL: bad readback track 8 drive 1.                                    
           All others ok.                                                       
     1909  Readbacks ok.                                                        
1929-1942 *HN: gap in data: disk pac change.                     REC    100   13
     1938 %MK: alto cumulus.                                                    
     1942  HN writing on NRAO-127, Bank B.                                      
1959-2010 *KP: power hit autostow, repointed.                    COM    100   11
     2018  End SC                                                               
     2018  End HN.                                                              
     2132  End.                                                                 


Downtime Summary:
	Total downtime : 89 min
	Percentage downtime of observing: 1.7%
	Average downtime per hour : 1.0 min

    Total scheduled observing time (# Antennas): 5302 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.