Tsukuba Correlator Report for I11120
OBSTIME  2011/04/30
DOY      120
CORRTIME 2011/05/02
EXPORT   DONE

CORRELATOR_NOTES
----------------
Scan at 120-07:57 produced a zero code on X-band. 
The source being observed was 1418+546. 
There was good integration time but low SNR for this scan.  
All Scans were correlated. Scans were fine.

QUALITY SUMMARY
---------------
 Qcode   % of Total   % of Correlated
           scans          scans
 
  5-9       97.1 %       97.1 % 
   0         2.9 %        2.9 %
 4-1,D,G,N   0.0 %        0.0 %
 Removed     0.0 % 

STATION_NOTES
-------------
KOKEE   (K-Kk): Dewar levels not in optimum range.
                During R4480 breaker for 20M Helium Compressor tripped
                causing Dewar levels to rise.
                Low pcal amplitude in SR1U and SR2U at 120-08:09 caused D-codes. 
                Manual phasecal applied.
                Transfer rate:  50 Mbit/s
               
WETTZELL(V-Vs): OK.
                Transfer rate: 400 Mbit/s

KOKEE data were  transferred to Tsukuba by 
data transfer software "TSUNAMI".
WETTZELL data were transferred to Tsukuba by 
data transfer software "TSUNAMI".


CLOCKS
----------
Clocks: KOKEE
Station       fmout-gps    used          rate        Comments
              [usec]       [usec]        [sec/sec]
Kk             4.975        4.975         7.184E-12  Reference
Wz           -22.263      -23.079         6.255E-12
Date:   2011/04/30


STATISTICS
----------
PROCESS SUMMARY BY BASELINE/FREQUENCY
Base    0    1    2    3    4    5    6    7    8    9    D    G    N    -  Tot
KV X    1    0    0    0    0    0    0    2    3   11    0    0    0    0   17
KV S    0    0    0    0    0    0    0    0    0   17    0    0    0    0   17
Column Totals, numbers then percentages
        1    0    0    0    0    0    0    2    3   28    0    0    0    0   34
 %    2.9  0.0  0.0  0.0  0.0  0.0  0.0  -->  --> 97.1  0.0  0.0  0.0  0.0100.0

 QC = 0   : Fringes not detected.
    = 1-9 : Fringes detected. The higher number, the better quality.
    = D   : No data in one or more frequency channels.
    = G   : Fringe amp in a freq ch is <.5 times coherent amp only if snr>20.
    = N   : No valid correlator data.
    = -   : Not scanned

Base Line:   KV
Total Obs:   17
Error    :    1
       % :  5.9
(ERROR: Q-code of either band is less than 4 or letter code, or not scanned)


SNR histogram
Distribution of X-band SNRs, for each baseline
SNR:  0   5  10  15  20  25  30  35  40  45  50  55  60  65  70  75  80  85  >>
KV:      0   4   2   3   2   1   0   1   0   1   0   0   1   0   0   1   0   1
Total    0   4   2   3   2   1   0   1   0   1   0   0   1   0   0   1   0   1
Total number of obs:    17  Average SNR:   29.2
Distribution of S-band SNRs, for each baseline
SNR:  0   5  10  15  20  25  30  35  40  45  50  55  60  65  70  75  80  85  >>
KV:      0   3   3   5   1   0   1   1   2   0   0   0   0   1   0   0   0   0
Total    0   3   3   5   1   0   1   1   2   0   0   0   0   1   0   0   0   0
Total number of obs:    17  Average SNR:   23.4


MEAN RATIOS = Observed SNR / Predicted SNR

 bl     X     n       S     n

 KV    1.47   16     1.11   17

--------------------------------
Nozawa,KENTAROU
Geospatial Information Authority of Japan
/ AES Co.,Ltd.
nozawa@gsi.go.jp