Occultation of UCAC4-321-104564 by 131 Vala on 2021 Jun 24

Distance from center of occultation path - in km
Distances are positive to the right, referenced to the direction of motion along the path

Uncertainty in time = +/- 4 secs

        d Proba-  Location                          Longitude Latitude   alt      U.T.     Sepn   Alt  Sun
     km   bility                                       o   '    o   '      m    h  m  s     "       o    o
    104 -    0%   ** Path limit plus 3-Sigma **   
     83 -    2%   ** Path limit plus 2-Sigma **   
     68 N   10%   Beijing China - Weizhou Ceng       116  5.   40 25.    552   15 12 31   -0.030   24  -25
     62 -   16%   ** Path limit plus 1-Sigma **   
     43 N   47%   327 Peking Observatory, Xinglon    117 35.   40 25.    833   15 12 16   -0.019   24  -25

     42 N   48%   PEKING        CN SICHAO~WANG       117 35.   40 25.      0   15 12 16   -0.019   24  -25
     41 -   50%   ***  Path limit  ***            
     29 N   71%   324 Peking Observatory, Shaho S    116 15.   40  5.     11   15 12 28   -0.013   24  -25
     16 N   88%   Ussurisk Siberia                   132  5.   43 45.    100   15 10  6   -0.007   19  -23
      0 -   95%   **** Centre Line    ****        

    -28 S   73%   Fanzhi China - Yongjiang Cui       113 15.   39 15.    937   15 12 58    0.013   25  -25
    -41 -   50%   ***  Path limit  ***            
    -49 S   35%   Vladivostok Siberia                131 55.   43  5.     10   15 10  5    0.022   20  -24
    -62 -   16%   ** Path limit plus 1-Sigma **   
    -83 -    2%   ** Path limit plus 2-Sigma **   

   -104 -    0%   ** Path limit plus 3-Sigma **   

Prediction of 2021 May 17.9