JADE-0808
             (Japanese Dynamic Earth observation by VLBI)
                           2008 AUG 28-29           
                 Notes prepared by kokado@gsi.go.jp
                Geographical Survey Institute, Japan


Session JD0808
Start 2008-241 02:00:00 AUG 28
End   2008-242 01:51:25 AUG 29
Stations
  1 Ts T TSUKUB32  
  2 Cc C CHICHI10  
  3 S3 J SINTOTU3  

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 
  Cc     Chichijima 
  S3     Shintotsukawa 

SCHEDULE
========
This schedule was made by kokado@gsi.go.jp using sked. 

Schedule setup parameters:
   Early start                      sec 
   Corr. tape sync time            ON sec 
   Minimum scan length              sec 
   Maximum scan length              sec
 Minimum SNR by baseline for multi-baseline scans
     X-band (margin   8)     S-band (margin   8)
     Ts  Cc          Ts  Cc  
 Cc  18          Cc  16
 S3  18   0      S3  16   0

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 0 of ranked scans for selection, 
   consider the last 0 hour of scans for sky coverage calculations,
   minimum : 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                        25 at X-band
                                     20 at S-band
   Number of observations           869 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/jd0808.skd for experiment JD0808  

      (all scans with at least one subnet station)


 Average number of obs. per baseline per source(normalized by up-time) =  18.6
 Min =    2.0  Max =   40.3 (Baseline Ts-Cc on 1741-038)   RMS =  10.1

 Total time:       1435 minutes (  23.9 hours).

 Key:     Ts=TSUKUB32   Cc=CHICHI10   S3=SINTOTU3
                  Ts   Cc   S3   Avg
 % obs. time:      67   14   65   48
 % cal. time:       0    0    0    0
 % slew time:      17   11   30   20
 % idle time:      15   74    4   32
 total # scans:   333  313  288  311
 # scans/hour :    14   13   12   13
 Avg scan (sec):  173   37  194  134
 # data tracks:    16   16   16
 # Mk5 tracks:     16   16   16
 Total GBytes:   1037  210 1005  751
 Total GB(M5):    922  186  893  667
 # of tapes :     1.0  1.0  1.0
 tape change times (hhmm):
                                                                                                                                                                
Total number of tapes:   3.0  Total GBytes (M5) recorded:  2001.8
      # OF OBSERVATIONS BY BASELINE 
  |  Ts   Cc   S3  StnTotal
-------------------------
Ts|      313  288     601      
Cc|           268     581      
S3|                   556      


 Number of  2-station scans:   65
 Number of  3-station scans:  268

 Total # of scans, observations:   333      869