VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BC120FH
Observer:       Chatterjee, S.
Project type:   VLBA
Obs filename:   bc120fhcrd.*
Date/Day:       2004MAY15/136
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
     2234  Begin file                                                           
           VCLOCK check ok. MK at -0.520 (ping 1.308 seconds)                   
           UT1-UTC check ok.                                                    
           GPS delta < 10 us                                                    
           Operator: T. Perreault                                               
2234-0035 %PT due to Servo work on antenna during Tiger team                    
           visit, the pointing is off. Expect to see weak                       
           fringes when correlated.                                             
2234-0035 *PT TSMPLOTs show periods of flagging due to           ACU     22   26
           ELEVATION oscillations of up to 1 degree 30 minutes                  
           of arc at various ELEVATION positions. Time periods                  
           affected are as follows (from flagged data plot):                    
           (times in UT): 15 May from 2235 to 2238, 2240                        
           to 2242, 2243 to 2245, 2253 to 2256, 2259                            
           to 2301, 2302 to 2305, 2315 to 2317, 2321                            
           to 2323, 2334 to 2335, 2351 to 2352; 16 May                          
           from 0016 to 0017, 0021 to 0023. Downtime is                         
           estimated.                                                           
2247-2253 *PT autostowed. Power glitch. Repointed.               COM    100    6
     2258  HN wea: raining                                                      
     0000  Date is 2004MAY16/137.                                               
     0035  End.                                                                 


Downtime Summary:
	Total downtime : 32 min
	Percentage downtime of observing: 2.6%
	Average downtime per hour : 1.6 min

    Total scheduled observing time (# Antennas): 1210 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.