VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BB168F
Observer:       Bartel, N.
Project type:   VLBA
Obs filename:   bb168fcrd.*
Date/Day:       2004FEB01/032
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Dave Pierce.                                             
           VCLOCK and GPS Delta check okay.                                     
           UT1-UTC: -0.41                                                       
     0928  File begins, except at MK, which starts later.                       
0928-2129 *BR TSMPLOTs show very noisy system temperature        OTHER   13   93
           for channel 3 (2266.49 MHz RCP) throughout entire                    
           observation.                                                         
0928-2129 *KP 13cm right FET #2 voltage intermittenly            13206   38  273
           fluctuating; channels 1 and 3. Data from channel 2                   
           appears bad as well, while the data from channel 4                   
           seems to be good. I'm going to carry the 13cm as                     
           75% down. Receiver is scheduled for replacement.                     
     1121  MK Joins in.                                                         
1121-2129 *MK 13cm LEFT FET #2 voltage out of range; channels    12940   25  152
           1 and 3 (LCP) data are affected.                                     
1230-1400 %HN TSMPLOTs show noisy system temperature             SCH     25   22
           on channels 1 and 3 (2258.49 MHz RCP (CH1) and                       
           2266.49 MHz RCP (CH3)). Elevation plot shows that                    
           antenna was very high in elevation during this time.                 
     1428  New operator: T. Perreault                                           
1554-1639 *SC ran out of tape. Called oncall site tech Greg      HUERR  100   45
           Worrell, left message on voicemail.                                  
     1618  SC contacted site tech Pete Allen, he said that he                   
           is an hour away but will head to the site and will                   
           try to contact Greg enroute.                                         
     1620  SC Pete called, said that he contacted Greg who is                   
           on his way to the site.                                              
     1622  SC Greg called, he is about 10 minutes from the                      
           site.                                                                
     1738  OV wea: cloudy, no precipitation                                     
1830-2129 %HN TSMPLOTs show noisy system temperature             SCH     25   44
           on channels 1 and 3 (2258.49 MHz RCP (CH1) and                       
           2266.49 MHz RCP (CH3)). Elevation plot shows that                    
           antenna was very low in elevation during this time.                  
     1902  MK wea: scattered cirrus & cumulus. no                               
           precipitation                                                        
     1906  SC observing ends                                                    
1920-1923 *MK not writing to tape. Site tech Tony called,        HUERR  100    3
           wanted me to send a tape terminate. Did so and tape                  
           is not running. Tony remounted tape and that cleared                 
           the problem.                                                         
     2034  KP wea: clear, no precipitation                                      
     2106  LA wea: overcast, no precipitation                                   
     2129  End.                                                                 


Downtime Summary:
	Total downtime : 632 min
	Percentage downtime of observing: 8.8%
	Average downtime per hour : 5.3 min

    Total scheduled observing time (# Antennas): 7210 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.