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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:  Fri 29 Mar 13:54:01 UTC 2024

   Satellite     Days: 29   28   27   26   25   24   23   22   21   20   -30    TotalNP  p   Score

1306703  Swarmc        36   39   84   69   0    42   56   98   140  63   1355      627    2   60095
1306702  Swarma        41   70   54   95   96   81   46   141  200  110  1595      934    2   86295
1804701  Gracefo1      18   44   141  113  45   95   142  123  151  122  2332      994    2   94352
1804702  Gracefo2      26   47   141  106  118  88   62   150  120  149  2008      1007   2   97768
1306701  Swarmb        87   80   79   78   133  112  83   83   167  227  3398      1129   2   108758
1003001  Tandemx       0    72   37   57   75   60   119  145  54   65   1355      684    3   128435
0702601  Terrasarx     0    72   62   67   55   68   136  139  64   101  1562      764    3   140482
1802001  Paz           101  87   118  24   108  86   200  103  217  133  2883      1177   3   229243
1304201  Kompsat5      0    0    0    32   59   131  172  135  112  330  2766      971    4   233166
1300901  Saral         113  119  59   50   42   103  148  110  176  200  2928      1120   2   318768
1807001  Icesat2       137  124  12   102  67   73   87   160  264  158  1550      1184   2   336170
1601101  Sentinel3a    27   63   172  115  116  93   102  172  201  164  2325      1225   2   342465
1001301  Cryosat2      97   91   78   120  142  100  160  121  100  278  2846      1287   2   368006
1803901  Sentinel3b    39   65   176  126  164  73   141  204  151  199  2071      1338   2   379531
1602101  Compassi6b    0    0    0    0    1    2    4    2    0    2    91        11     5   384091
2217301  Swot          181  129  146  191  83   128  139  245  237  407  3860      1886   2   531020
8903903  Etalon2       0    10   5    9    17   17   18   10   8    27   296       121    2   630296
1808101  Hy2b          4    71   63   28   95   49   110  91   97   227  1987      835    3   800707
1200601  Lares         116  72   110  170  125  103  149  167  150  218  2978      1380   2   813938
8900103  Etalon1       5    21   11   14   14   6    27   10   16   34   285       158    2   891885
2104301  Hy2d          28   4    81   115  119  67   129  188  141  285  2508      1157   3   1074108
0304206  Larets        50   45   11   39   43   23   38   89   53   104  1428      495    4   1090068
2008601  Sentinel6a    133  333  240  562  517  168  334  367  655  546  8769      3855   2   1113729
1600201  Jason3        147  402  360  549  608  295  438  437  439  796  10613     4471   2   1310873
6503201  Beaconc       55   57   164  82   164  17   89   123  240  287  4242      1278   4   1326642
1802902  Beidou3m10    0    0    0    1    11   6    5    11   0    5    113       39     5   1545713
2006601  Hy2c          63   113  139  148  144  99   158  147  221  365  3204      1597   3   1691364
9207002  Lageos2       70   178  104  98   176  103  123  167  226  227  3416      1472   1   1698536
7603901  Lageos1       70   159  134  163  106  130  191  165  206  217  3508      1541   1   1807828
1706902  Beidou3m2     0    0    11   0    11   5    4    1    1    12   186       45     5   2035386
1802901  Beidou3m9     0    2    2    0    7    10   12   12   0    9    134       54     5   2102534
2208001  Lares2        70   91   83   105  42   53   134  128  91   160  2157      957    2   2256717
1603401  Geoik2        28   112  101  83   108  60   133  102  147  260  2303      1134   4   2410463
1801802  Beidou3m3     0    11   0    0    3    7    17   8    6    15   173       67     5   2601773
9306102  Stella        9    115  149  134  129  70   85   155  158  200  2418      1204   4   2738418
1405002  Galileo202    0    6    6    19   6    4    11   17   30   27   212       126    5   4541012
1603002  Galileo210    14   0    9    9    0    10   32   7    8    43   194       132    5   5116994
1507901  Galileo209    2    2    9    24   6    5    32   9    9    52   312       150    5   5414712
7501001  Starlette     72   249  206  300  348  181  198  326  422  466  4816      2768   4   6140176
1106002  Galileo102    2    18   13   13   10   11   21   5    20   31   295       144    5   6355495
8606101  Ajisai        224  396  255  500  310  196  277  374  472  560  6329      3564   4   8606969