VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BL149AL
Observer:       Lister, M.
Project type:   VLBA
Obs filename:   bl149alcrd.*
Date/Day:       2008JUL30/212
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is A. Sowinski.                                             
           UT1-UTC -0.45, gps delta and vclock okay.                            
          %FD weather station air temp and dew point readings    23100          
           are questionable, will be flagged in the monitor                     
           data.                                                                
     1038  Begin.                                                               
1038-1038 *FD Occasional FRM Focus break faults.                 23144   03   43
     1249  FD reports wea: scattered clouds, dry.                               
1310-1319 *FD Antenna stowed for repair work on weather          23100  100    9
           station. All weather data briefly inaccurate.                        
     1334  New operator is Jim Ogle.                                            
     1335 %FD weather station reporting an inaccurate wind       23100          
           peak speed. Unable to reset it.                                      
     1423  SC reports light scattered low clouds, hazy                          
           conditions.                                                          
     1437  BR reports scattered low clouds.                                     
     1459  OV reports clear skies.                                              
     1525  KP reports broken high thin clouds.                                  
1646-1651 *HN techs replacing a failing power supply in the      PS     100    5
           C-rack; BBCs, formatter, lots of stuff affected.                     
     1651 *Everything appears back to normal at HN. Site techs                  
           report they had to retime the station and reset the                  
           formatter though.                                                    
     1858  MK reports clear skies and light winds.                              
     2110  New operator: T. Perreault                                           
     2124  KP wea: clear, no precipitation                                      
     2244  OV wea: clear, no precipitation, heavy smoke                         
2323-2330 *FD FOCUS brake fault - cleared.                       23144  100    7
     0000  Date is 2008JUL31/213.                                               
0004-0008 *FD autostowed. 55 mph wind gust warning               WEA    100    4
           Repointed.                                                           
     0012 *FD wea: raining, elevated system temperatures -                      
           site tech reporting (from home) that there is a                      
           thunderstorm at/near the site - the 55 mph wind                      
           gust might actually have been a real wind autostow                   
0016-0020 *FD AZ2 armature overcurrent error message - cleared   ACU    100    4
           by momentarily disabling the AZ axis                                 
0128-0134 *FD FOCUS brake fault - cleared.                       23144  100    6
0202-0204 *FD FOCUS brake fault - cleared.                       23144  100    2
0310-0311 *FD FOCUS brake fault - cleared.                       23144  100    1
0350-0353 *FD FOCUS brake fault - cleared.                       23144  100    3
0420-0421 *FD FOCUS brake fault - cleared.                       23144  100    1
0442-0448 *FD FOCUS brake fault - cleared.                       23144  100    6
0521-0524 *FD FOCUS brake fault - cleared.                       23144  100    3
     0545  Operator is A. Sowinski.                                             
0715-0721 *OV AZ#1 overcurrent fault.                            ACU    100    6
1005-1005 %LA Lost communications to Mark5.                                     
     1038  End.                                                                 


Downtime Summary:
	Total downtime : 100 min
	Percentage downtime of observing: 0.7%
	Average downtime per hour : 0.4 min

    Total scheduled observing time (# Antennas): 14400 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.