VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        RDV52
Observer:       D. Gordon
Project type:   GEO
Obs filename:   rdv52
Date/Day:       2005AUG24/236
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK 

=UT-Time===Comment===============================================MF#===%AD==AMD=
           On duty Operators: Peggy Perley and Juan Cordova                     
           Weather: 100% cloudy at SC,HN,NL                                     
           Clear at FD,LA,PT,OV,BR,MK                                           
           20% Cumulus clouds at KP                                             
     1759  Begin Observing - all stations on source                             
           MK5 Disc recording Info:                                             
           HN - NRAO-077, Bank B                                                
           FD - NRAO-048, Bank B                                                
           PT - NRAO-099, BANK B                                                
           LA - NRAO-060, Bank B                                                
           KP - NRAO-068, Bank A                                                
           MK - NRAO-042, Bank B                                                
     1759  The usual RFI at various 13cm channels occasionally                  
1759-1801 %HN 4cm tsys 2x normal - probably weather related                     
     1825 %HN WEA: Raining.                                                     
1854-1914 *PT Antenna autostowed. Power glitch.                  WEA    100   20
     1918  MK WEA: Clear.                                                       
1933-1935 *NL AZ #2 armature over current>                       ACU    100    2
     1958 %PT WEA: Raining.                                                     
2025-2048 *PT Antenna autostowed. Power glitch.                  WEA    100   23
2037-2049 *NL Site techs need the antenna for a few minutes.     16739  100   12
     2130  New operator: T. Perreault                                           
     2231  BR wea: scattered low clouds, no precipitation                       
     2255  OV wea: clear, no precipitation                                      
2257-0012 *PT there is an unclearable AZ#2 emergency stop        16761  100   75
           set on the antenna. Showing an excessive drive                       
           voltage. Have stowed the antenna and will call the                   
           oncall site tech. Have removed antenna from                          
           observing.                                                           
     2335  PT site tech onsite. Having problems getting onto                    
           the VME. Told him to go ahead and reboot.                            
     2340 %FD wea: raining                                                      
     0000  Date is 2005AUG25/237.                                               
0002-0012 *OV autostowed. Power glitch. Repointed.               COM    100   10
0031-0207 *SC unclearable AZ#1 armature overcurrent              16762  100   96
           error. Called oncall site tech, left message on                      
           answering machine. Cell phone circuits are busy.                     
     0052  SC still can't clear the AZ#1 fault, can't reach                     
           the oncall site tech via cell phone. Stowed                          
           antenna, removed from observing.                                     
     0054  SC got ahold of site tech on cell phone. He or the                   
           other tech will go out to the site.                                  
     0145  SC site tech on site.                                                
     0202  SC site tech replaced fuse                                           
     0545  New operator is Brian Willard.                                       
     0937  WEA: rain SC.                                                        
1006-1019 *KP: power hit autostow, repointed.                    WEA    100   13
1148-1305 *SC: low lube pressure, stowed 2 fix.                  ACU    100   77
     1226  WEA: clear HN.                                                       
           WEA: high thin clouds NL.                                            
           WEA: clear FD.                                                       
           WEA: clear LA.                                                       
     1340  New operator is Paul Dyer.                                           
     1404  MK Writing Mark V disc pack NRAO-083 in bank A.                      
     1801  End.                                                                 


Downtime Summary:
	Total downtime : 328 min
	Percentage downtime of observing: 2.3%
	Average downtime per hour : 1.4 min

    Total scheduled observing time (# Antennas): 14420 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.