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Latest Satellite Tracking Priorities

SLR satellites are listed in order of highest priority to enable best coverage by the ILRS network.


The table below shows the number of normal points submitted to the EDC data centre by the ILRS network over the last 10 days. A priority is assigned to each satellite depending on its requirements for tracking. A priority setting of 1 is twice the priority of a setting of 2 which is twice as high in priority as a setting of 3.

A weighting is applied according to the number of Normal Points collected in the previous 10 days with the most recent data having a higher weighting, reducing its priority. This weighting is scaled by the satellite normal point bin length.

The satellites are tabled in decreasing order of their immediate priority for tracking. This table is updated every hour.

Click here to see a Herstmonceux only dynamic priority table
Updated:  Sun 25 Aug 19:56:30 UTC 2019

   Satellite     Days: 25   24   23   22   21   20   19   18   17   16       TotalNP  p   Score

1801407  Snet2         0    0    0    0    0    0    0    0    0    0         0      3   0    
1300301  Stsat2c       0    0    6    0    0    0    0    0    0    0         6      3   5760 
1801408  Snet3         0    0    0    0    0    45   0    0    0    0         45     3   9000 
1306702  Swarma        92   103  126  134  108  114  69   78   75   105       1004   2   115520
1801410  Snet1         13   97   101  44   23   20   48   100  12   43        501    3   116640
1306703  Swarmc        86   85   172  121  97   112  138  78   122  166       1177   2   123720
1801409  Snet4         19   106  63   73   44   28   153  59   7    105       657    3   138840
1804701  Gracefo1      132  194  207  68   219  200  93   75   150  214       1552   2   172460
1804702  Gracefo2      140  189  238  173  232  160  155  93   60   287       1727   2   194280
0702601  Terrasarx     91   107  40   125  177  98   164  69   82   115       1068   3   230480
1003001  Tandemx       97   91   67   154  116  139  169  96   78   176       1183   3   243600
1306701  Swarmb        208  309  421  299  235  269  307  212  245  308       2813   2   314780
1704205  Technosat     21   90   100  41   50   93   79   43   32   70        619    3   414120
1300901  Saral         81   132  206  257  232  140  163  179  137  197       1724   2   551820
1001301  Cryosat2      132  200  190  200  205  213  136  122  146  164       1708   2   582060
1304201  Kompsat5      118  173  134  16   249  223  312  176  0    77        1478   4   670640
1602101  Compassi6b    0    2    4    0    3    3    2    5    5    15        39     5   1257600
1104301  Hy2a          111  96   108  98   72   119  106  104  88   116       1018   3   1338960
1808101  Hy2b          114  111  127  168  98   37   66   158  108  170       1157   3   1494720
1200601  Lares         161  258  303  290  220  261  200  185  111  273       2262   2   1543320
0803201  Jason2        350  485  770  650  534  681  421  587  328  616       5422   2   1794060
8900103  Etalon1       20   25   25   35   34   32   20   44   27   28        290    2   1833600
1600201  Jason3        325  619  724  715  676  615  475  487  330  632       5598   2   1884120
8903903  Etalon2       50   40   19   24   30   9    26   38   17   40        293    2   2036400
0304206  Larets        54   113  93   110  108  109  91   83   64   176       1001   4   2486880
9207002  Lageos2       194  201  244  229  191  245  203  198  159  227       2091   1   2790240
9306102  Stella        64   122  129  155  130  142  120  83   98   99        1142   4   3057120
7603901  Lageos1       129  242  260  296  313  269  204  216  176  262       2367   1   3101040
6503201  Beaconc       58   385  378  407  364  232  214  224  154  432       2848   4   3727200
1603401  Geoik2        119  174  305  266  168  166  183  119  143  198       1841   4   5025120
1802902  Beidou3m10    12   19   7    8    0    22   5    14   11   0         98     5   5731200
1801802  Beidou3m3     0    14   14   8    9    21   21   15   12   9         123    5   5904000
1706902  Beidou3m2     0    15   18   6    13   23   12   17   2    15        121    5   6067200
1802901  Beidou3m9     10   28   8    3    2    13   13   22   3    0         102    5   6124800
1507901  Galileo209    2    11   28   10   6    19   24   0    14   19        133    5   6595200
7501001  Starlette     99   310  347  329  276  347  281  233  188  328       2738   4   7092960
1405002  Galileo202    9    2    13   28   19   32   23   4    7    6         143    5   7737600
1603002  Galileo210    3    33   31   6    15   21   13   10   8    15        155    5   8880000
8606101  Ajisai        153  495  500  443  438  393  389  362  380  427       3980   4   10323840
1106002  Galileo102    13   9    14   26   8    62   41   10   19   20        222    5   10704000
1808601  Glonass139    16   22   29   38   33   17   12   16   9    22        214    5   12240000
1805301  Glonass138    3    25   32   50   30   32   27   20   20   24        263    5   13756800
1301901  Glonass131    16   28   20   35   26   47   45   26   24   22        289    5   14745600
1407501  Glonass134    15   60   38   28   30   33   33   31   22   41        331    5   17712000