JADE-0801
             (Japanese Dynamic Earth observation by VLBI)
                           2008 01 21-22           
                 Notes prepared by kokado@gsi.go.jp 
                Geographical Survey Institute, Japan


Session JADE0801
Start 2008-021 02:00:00 01 21
End   2008-022 01:53:56 01 22
Stations
  1 Ts T TSUKUB32  
  2 Ai A AIRA  
  3 Cc C CHICHI10  

Duration:      24 hours
Correlator:    TSUKUBA(GSI)
 
PURPOSE
=======
The purpose of the JADE sessions is to monitor the plate motion and 
the local crustal movement around Japan. 
In 2008 fiscal year, JADE session will be carried out once a month. 

NETWORK
=======
The standard configuration of the JADE projests consists of 
some stations. 

Code : Station
  Ts     Tsukuba 
  Ai     Aira 
  Cc     Chichijima 

SCHEDULE
========
This schedule was made by tbd using sked. 

Schedule setup parameters:
   Early start                     0 sec 
   Corr. tape sync time            0 sec 
   Minimum scan length             40 sec 
   Maximum scan length             784 sec
 Minimum SNR by baseline for multi-baseline scans
     X-band (margin   8)     S-band (margin   8)
     Ts  Ai          Ts  Ai  
 Ai  18          Ai  16
 Cc  18  16      Cc  16  15

Automatic scheduling setup: 
   optimize for uniform sky coverage at all stations,
   maximize the number of observations,
   minimize slewing time, 
   minimize time between scans, 
   consider the top 50% of ranked scans for selection, 
   consider the last 4 hour of scans for sky coverage calculations,
   minimum 30 min between scans on the same source.


The characteristics of the generated schedule are listed below. 
These will vary slightly for each schedule that is generated. 

Schedule characteristics:
   Average scan length               seconds
   Median SNR                        80 at X-band
                                     70 at S-band
   Number of observations           903 observations
   Average scans per station         scans

FREQUENCY SEQUENCE      
==================

Chann#   Band    Skyfreq(MHz)     LOfreq(MHz)
   1       x       8204.99         7680.0  
   2       x       8214.99         7680.0  
   3       x       8244.99         7680.0  
   4       x       8304.99         7680.0  
   5       x       8414.99         7680.0  
   6       x       8494.99         7680.0  
   7       x       8544.99         7680.0  
   8       x       8564.99         7680.0  
   9       s       2229.99         1600.0  
  10       s       2234.99         1600.0  
  11       s       2249.99         1600.0  
  12       s       2279.99         1600.0  
  13       s       2309.99         1600.0  
  14       s       2319.99         1600.0  
  15       s       2334.99         1600.0  
  16       s       2344.99         1600.0  
 
APPENDIX
========

   SKED Summary from file /home/sked/skd_files/jd0801.skd for experiment JADE0801

      (all scans with at least one subnet station)


 Average number of obs. per baseline per source (normalized by up-time) =  18.1
 Min =    .0   Max =   37.5 (Baseline Ts-Cc on 3C454.3 )   RMS =  14.0

 Total time:       1439 minutes ( 24.0 hours).

 Key:     Ts=TSUKUB32   Ai=AIRA       Cc=CHICHI10

                  Ts   Ai   Cc   Avg
 % obs. time:      77   77   77   77 
 % cal. time:       3    3    3    3 
 % slew time:      12    8    8    9 
 % idle time:       6   10   10    9 
 total # scans:   309  308  310  309 
 # scans/hour :    12   12   12 12.9
 Avg scan (sec):  216  216  216  216 
 Total GBytes:   1203 1199 1206 1203 
 Total GB(M5):   1069 1066 1072 1069 
 # of tapes :     1.0  1.0  1.0
 tape change times (hhmm):
                                                                                                                                                                
Total number of tapes:   3.0  Total GBytes (M5) recorded:  3208.2

      # OF OBSERVATIONS BY BASELINE

   | Ts  Ai  Cc   StnTotal 
 --------------------------
 Ts|309 300 302      602 
 Ai|    308 301      601 
 Cc|        310      603 


 Number of  2-station scans:   24
 Number of  3-station scans:  293

 Total # of scans, observations:   317     903