VERY LONG BASELINE ARRAY OBSERVING LOG
--------------------------------------
Project:        BW082A
Observer:       Walker, R.C.
Project type:   VLBA
Obs filename:   bw082acrd.*
Date/Day:       2006APR08/098
Ants Scheduled: SC HN NL FD LA PT KP OV BR MK

=UT-Time===Comment===============================================MF#===%AD==AMD=
           Operator is Anthony Sowinski.                                        
           Vclock and gps delta checks okay.                                    
           Mark5 info:                                                          
           SC, NRAO-018, bank A                                                 
           HN, NRAO-050, bank A                                                 
           NL, NRAO-075, bank B                                                 
           FD, NRAO-146, bank A                                                 
           LA, NRAO-030, bank A                                                 
           PT, NRAO-047, bank B                                                 
           KP, NRAO-035, bank B                                                 
           OV, NRAO-119, bank A                                                 
           BR, NRAO-145, bank B                                                 
           MK, NRAO-166, bank A                                                 
           High winds at OV.                                                    
     0137  Begin.                                                               
0147-0305  MK will be trying to look below horizon for next                     
           hour and 45 minutes, so I stowed while waiting for                   
           source to rise.                                                      
0218-0219 *KP Autostowed, repointed. Power glitch?               COM    100    1
0344-0352 *BR Disc loop not running, offlined/onlined but still  REC    100    8
           not running, station computer rebooted, recording                    
           resumed.                                                             
0353-0354 *OV wind autostow, repointed                           WEA    100    1
0420-0426 *BR Discloop stopped again. disc reset fixed           REC    100    6
           problem this time.                                                   
0445-0446 *OV wind autostow, repointed                           WEA    100    1
0446-0456 *OV again, waiting a bit before repointing             WEA    100   10
0454-0459 *BR Discloop problem again, reset mk5 again            REC    100    5
0501-0507 *BR Continuing problems, seems to be issues with                      
           station computer talking to the mk5 unit. most of                    
           downtime listed here is probably not really downtime                 
0504-0505 *OV wind autostow, repointed                           WEA    100    1
0535-0558 *BR Discloop problem again; waiting to see if          REC    100   23
           station is really recording data afterall,                           
           at W. Brisken's suggestion.                                          
           Disk usage on NRAO-145 is 1352Gb full.                               
0542-0557 *OV wind autostow, repointed.                          WEA    100   15
     0545  Operator is Sonja Mendoza.                                           
     0548 *BR Station computer has rebooted itself again.        REC            
           Mark5 unit cannot be commanded to go online (Error                   
           connecting to unit 1 : Socket connection error).                     
     0555 *BR Rebooting Mark5 computer to see if that works.     REC            
     0558  BR Mark5 unit is once again recording data; however                  
           the diskusage is actually decremented (now at                        
           1327Gb). Not sure if data was overwritten and lost.                  
     0609  FD writing to Mk5 disk NRAO-017, bank B.                             
0617-0621 *OV wind autostow, repointed.                          WEA    100    4
     0930 *HN High system temps (2 to 3x nominal) at HN site;    WEA            
           no errors on checker. Indications that it may be                     
           weather include thick cloud cover from satellite                     
           imagery and radar indicates rain in the vicinity                     
           though not at the site.                                              
0954-1135 *PT leaves this observation to join project AB1196B,   SCH    100  101
           a PT link project.                                                   
     1120 %HN WEA: radar indicates some clearing, as rain to                    
           the east of HN moves out to sea. System temps are                    
           noticeably improved.                                                 
     1135  End.                                                                 


Downtime Summary:
	Total downtime : 176 min
	Percentage downtime of observing: 2.9%
	Average downtime per hour : 1.8 min

    Total scheduled observing time (# Antennas): 5980 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.