VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BG164A
Observer:       Gugliucci, N.
Project type:   VLBA
Obs filename:   bg164acrd.*
Date/Day:       2006APR19/109
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
     0723  Begin file.                                                          
           VCLOCK check ok. SC at -0.212 (ping 0.803 second)                    
           UT1-UTC check ok (0.25)                                              
           GPS delta < 10 us                                                    
           Mark5 recording status:                                              
           HN: bank B, pack VIPSK-03                                            
           FD: bank B, pack NRAO-010                                            
           LA: bank B, pack NRAO-060                                            
           KP: bank A, pack NRAO-051                                            
           BR: bank B, pack NRAO-147                                            
           SC,NL,PT,OV,MK recording tape                                        
           Operator: T. Perreault                                               
0723-1513 *PT the subreflector is having an "issue" in ROTATION  18054   25  117
           when transitioning between 4cm and 6cm observing in                  
           that it is frequently not reaching the commanded                     
           position with a "Rotation apex interface not                         
           responding" error flag. The subreflector can be                      
           sent to the commanded position, however, there will                  
           be some lost data due to the amount of extra time                    
           that it will take to get the subreflector into                       
           position. Downtime is estimated.                                     
     0743  MK readback check ok                                                 
     0843  Readback check ok                                                    
     0851  Readback check ok                                                    
     1005  Readback check ok                                                    
     1113  SC readback check ok                                                 
     1118  Readback check ok                                                    
     1226  FD wea: clear, no precipitation                                      
     1233  HN wea: clear, no precipitation                                      
     1303  SC wea: light scattered low clouds, no                               
           precipitation, hazy                                                  
     1332  Phillip Hicks, Operator du jour.                                     
     1332  SC cloudy, other sites clear. No precipitation.                      
     1341  LA Weather: Tech reports clear, dry conditions.                      
     1350  Operator is Sonja Mendoza.                                           
1356-1404 *PT Subreflector in manual; site tech doing a hard-    18054          
           ware check on FRM modules.                                           
     1403  BR WEA: Site tech reports a few thin, high                           
           scattered clouds, dry.                                               
1505-1509 *KP Antenna autostowed; possible power glitch.         COM    100    4
           Repointed.                                                           
     1511  OV WEA: Site tech reports clear skies, dry.                          
     1511  KP WEA: Site tech reports clear skies, dry.                          
     1513  End.                                                                 


Downtime Summary:
	Total downtime : 121 min
	Percentage downtime of observing: 2.6%
	Average downtime per hour : 1.5 min

    Total scheduled observing time (# Antennas): 4700 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.