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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:  Tue 3 Dec 07:53:29 UTC 2024

   Satellite     Days: 3    2    1    30   29   28   27   26   25   24   -30    TotalNP  p   Score

2412301  Alos4         0    0    12   5    9    15   7    13   87   0    0         148    1   15030
1306703  Swarmc        7    49   17   2    10   50   48   91   78   0    645       352    2   32485
1804701  Gracefo1      3    27   41   25   29   49   83   84   87   0    1042      428    2   40102
1306702  Swarma        0    74   45   14   19   67   56   83   45   19   571       422    2   43671
1804702  Gracefo2      5    42   78   27   34   68   147  92   46   18   960       557    2   56140
1003001  Tandemx       0    90   27   36   61   13   73   101  133  8    1475      542    3   104595
0702601  Terrasarx     0    80   33   71   43   17   69   127  77   7    1482      524    3   107162
1306701  Swarmb        7    193  133  177  162  182  108  211  344  79   2820      1596   2   159300
1807001  Icesat2       0    99   21   25   0    78   111  202  152  0    1350      688    2   180030
1803901  Sentinel3b    43   7    46   79   41   105  193  128  137  27   1595      806    2   220115
1601101  Sentinel3a    35   20   65   138  35   118  260  145  145  30   1866      991    2   278526
1001301  Cryosat2      0    194  80   116  83   133  123  143  187  99   2499      1158   2   347799
1802001  Paz           0    325  155  236  134  143  191  226  100  17   2665      1527   3   362465
9804305  Westpac       2    47   70   39   16   19   30   30   42   0    308       295    4   422948
1300901  Saral         9    282  92   252  95   113  96   152  163  68   2490      1322   2   452310
2217301  Swot          15   101  254  173  99   213  244  141  166  40   2347      1446   2   466267
8903903  Etalon2       0    15   20   13   13   18   18   4    27   15   149       143    2   848549
8900103  Etalon1       0    13   16   19   21   25   5    2    27   0    189       128    2   850989
1200601  Lares         6    195  140  214  159  236  168  218  283  101  3283      1720   2   1030483
2008601  Sentinel6a    130  303  262  668  367  456  457  395  669  285  6877      3992   2   1201897
1600201  Jason3        78   317  289  585  405  548  624  401  747  225  7579      4219   2   1245259
1808101  Hy2b          0    164  107  153  113  95   104  134  172  115  1658      1157   3   1401578
2006601  Hy2c          0    199  106  184  79   153  168  107  198  81   2093      1275   3   1594733
9207002  Lageos2       19   92   98   186  154  190  257  128  239  67   2843      1430   1   1667243
0304206  Larets        8    102  88   65   56   77   66   67   79   23   936       631    4   1692456
7603901  Lageos1       11   149  118  138  169  206  156  162  214  117  2647      1440   1   1697047
2104301  Hy2d          15   125  138  199  166  153  193  184  225  130  1934      1528   3   1786814
2208001  Lares2        2    94   84   148  93   145  130  111  135  46   2186      988    2   2414666
1801802  Beidou3m3     0    13   3    3    0    3    10   0    17   6    98        55     5   2467298
1706902  Beidou3m2     0    0    5    9    10   13   2    2    7    2    92        50     5   2476892
9306102  Stella        50   81   87   166  115  118  92   80   82   59   1725      930    4   2496765
1603002  Galileo210    0    0    4    8    7    9    10   12   15   3    163       68     5   2726563
6503201  Beaconc       0    251  199  402  234  279  283  298  382  298  3815      2626   4   3016295
1507901  Galileo209    0    9    3    11   12   3    2    5    18   0    126       63     5   3148926
1602101  Compassi6b    0    7    7    12   10   9    7    0    6    2    98        60     5   3360098
1802902  Beidou3m10    0    2    12   8    19   23   6    3    11   2    84        86     5   4377684
7501001  Starlette     20   240  139  219  205  219  197  281  217  128  4131      1865   4   4575171
1802901  Beidou3m9     0    10   7    9    7    22   19   7    11   3    106       95     5   4636906
8606101  Ajisai        21   199  401  336  240  280  338  183  385  115  5478      2498   4   6335238
1106002  Galileo102    0    33   7    25   15   6    26   20   4    4    207       140    5   7910607
1405002  Galileo202    0    13   17   26   24   16   12   27   43   12   254       190    5   8505854