VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BL104N
Observer:       A. Lobanov
Project type:   VLBA
Obs filename:   bl104ncrd.*
Date/Day:       2004JAN02/002
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           VCLOCK and GPS Delta check okay.                                     
           UT1-UTC: -0.39                                                       
           Operator is D. Pierce.                                               
                                                                                
     1456  File begins.                                                         
     1456  WEA Update; SC,FD,KP - Clear. HN - Overcast,                         
           possible light snow in dish. NL - Foggy. LA - Mostly                 
           cloudy. PT - Scattered high cirrus.                                  
     1456  MK Frequent focus/rotation faults. Errors may be the                 
           result of slow communications. Command position was                  
           always acquired. Flagged data is good.                               
     1509  LA WEA: Broken low clouds, dish is dry.                              
     1523  Readbacks are okay.                                                  
     1537  BR WEA: Low broken clouds. No new snow.                              
     1546  Readbacks are okay.                                                  
1555-1558 *SC Rotation motor overspeed.                          FRM    100    3
     1608 *PT Bad readback on track 4, drive #1. Other site                     
           readbacks are okay.                                                  
1609-1620 *SC Rotation failed to attain commanded                FRM    100   11
           position. Had to manually drive past commanded                       
           position and refresh scan.                                           
1618-1623 *OV Focus brake fault.                                 FRM    100    5
1634-1637 *SC Rotation motion analysis fault.                    FRM    100    3
1653-1658 *SC Rotation motion analysis fault.                    FRM    100    5
     1656  Readbacks are okay.                                                  
1704-1708  FD FRM got lost on scan change. Refreshed scan.       FRM    100    4
     1719  Readbacks are okay.                                                  
     1852  MK WEA: Overcast.                                                    
     1853  End.                                                                 


Downtime Summary:
	Total downtime : 31 min
	Percentage downtime of observing: 1.3%
	Average downtime per hour : 0.8 min

    Total scheduled observing time (# Antennas): 2370 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.