VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        GG053A
Observer:       M.A. Garrett
Project type:   NUG
Obs filename:   gg053acrd.*
Date/Day:       2004FEB20/051
Ants Scheduled: SC HN NL FD LA PT KP OV BR 

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Paul Dyer.                                               
           VCLOCK, GPS Delta, and UT1-UTC check ok.                             
     2310  Begin at all stations.                                               
2310-2352 *HN Antenna was left in emergency stop by the          HUERR  100   42
           site tech. I can't point till they release it. I've                  
           called all possible phone numbers and left                           
           messages.                                                            
     2325  HN I talked to the off duty site tech and he will go                 
           to the site and release the antenna.(Mark)                           
     0000  Date is 2004FEB21/052.                                               
     0040 *NL Bad readbacks on drive 1, all tracks except                       
           02,06,08,10.12,18,20,22, and 24.                                     
           Readbacks at all other sites were good.                              
     0126  All readbacks ok.                                                    
     0212 %NL Bad readbacks on drive 1, all tracks except                       
           2,4,6.8.10.12.18.20.22. and 28. Tape was at the end                  
           of the reverse pass. All other sites are ok.                         
     0258 %FD Bad readback on drive 1, track 32. All other                      
           sites are ok.                                                        
     0344 *NL Bad readbacks as above. The readback may be                       
           occurring while the tape is reversing or the first                   
           few feet of the tape may be bad.                                     
           All other stations had good readbacks.                               
     0430 %FD Bad readback on drive 1, track 32. All other                      
           sites are ok.                                                        
     0442  Readbacks at all sites are ok.                                       
     0521 *NL Bad readbacks as before. Tape was moving in                       
           reverse, with only 300ft on takup reel.                              
     0521 %FD Bad readback on drive 1, track 32. Readbacks at                   
           all other sites were ok.                                             
     0607  All readbacks ok.                                                    
     0635  New operator is Dave Pierce.                                         
     0653 *NL Bad readbacks as previously noted. All other                      
           site readbacks are okay.                                             
0717-0719 *KP Autostowed. Power bump? Repointed.                 COM    100    2
     0739 %FD Bad readback on Drive #1, track 32.                               
          %PT Bad readback on Drive #1, track #4.                               
           All other site readbacks are okay.                                   
     0825 *NL Bad readbacks as previously noted, All other                      
           site readbacks are okay.                                             
     0911 %FD Bad readback on Drive #1, track 32.                               
          %PT Bad readback on Drive #1, track 5.                                
           All other site readbacks are okay.                                   
     0957  End.                                                                 


Downtime Summary:
	Total downtime : 44 min
	Percentage downtime of observing: 0.8%
	Average downtime per hour : 0.5 min

    Total scheduled observing time (# Antennas): 5823 min (9)

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.