Home » SGF Operations » Dynamic Priorities

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:  Thu 7 Dec 12:54:14 UTC 2023

   Satellite     Days: 7    6    5    4    3    2    1    30   29   28   -30    TotalNP  p   Score

1804702  Gracefo2      5    73   60   76   36   38   87   112  169  51   2199      707    2   66159
1306703  Swarmc        34   146  67   72   25   64   74   83   49   40   1326      654    2   78266
1804701  Gracefo1      5    78   98   95   86   39   100  155  128  107  2007      891    2   84807
1306702  Swarma        42   155  91   70   47   108  81   132  43   61   1596      830    2   96036
0702601  Terrasarx     9    81   41   132  109  44   91   100  133  62   1928      802    3   159408
1003001  Tandemx       7    141  62   113  90   73   64   60   138  48   1689      796    3   173329
1306701  Swarmb        117  275  153  136  210  85   171  153  233  77   2848      1610   2   186688
1807001  Icesat2       87   58   108  19   84   55   79   52   134  117  1125      793    2   242625
1300901  Saral         9    156  28   100  116  113  122  63   101  62   2198      870    2   279398
1803901  Sentinel3b    94   120  79   61   85   88   133  138  158  108  1970      1064   2   325910
1802001  Paz           36   330  86   106  137  134  218  257  276  104  2946      1684   3   344986
1601101  Sentinel3a    63   112  191  122  90   65   161  170  166  159  2039      1299   2   393839
1001301  Cryosat2      63   183  185  79   144  69   165  204  211  161  2894      1464   2   445334
1304201  Kompsat5      37   181  20   331  113  193  214  186  259  0    3567      1534   4   647647
2217301  Swot          80   361  144  242  191  209  236  254  232  174  3723      2123   2   689523
8900103  Etalon1       0    15   0    28   18   10   14   7    8    0    263       100    2   698663
8903903  Etalon2       4    18   18   4    11   3    8    16   18   14   324       114    2   702324
1200601  Lares         88   181  114  169  141  108  158  172  173  111  2752      1415   2   914152
2008601  Sentinel6a    115  447  508  271  450  279  627  252  384  448  7341      3781   2   1189881
1600201  Jason3        180  466  367  308  553  239  436  390  536  462  8006      3937   2   1210826
1808101  Hy2b          42   126  104  92   125  105  98   72   172  135  1961      1071   3   1296041
0304206  Larets        39   45   45   78   42   68   77   52   62   53   1011      561    4   1409331
2104301  Hy2d          77   166  101  152  115  52   111  107  141  96   2181      1118   3   1497141
9207002  Lageos2       33   234  109  85   100  117  157  97   141  144  2611      1217   1   1546531
2006601  Hy2c          44   152  124  142  161  167  129  136  119  56   2446      1230   3   1637566
1706902  Beidou3m2     0    0    5    0    13   7    12   1    0    4    131       42     5   1996931
7603901  Lageos1       127  205  111  128  164  183  193  119  268  177  3518      1675   1   2077118
6503201  Beaconc       94   270  98   336  217  173  194  167  200  193  2557      1942   4   2532877
1602101  Compassi6b    0    5    6    5    10   5    7    5    3    9    138       55     5   2601738
1603401  Geoik2        8    149  90   119  124  103  127  98   175  136  2238      1129   4   2652318
1405002  Galileo202    0    7    7    0    12   4    6    12   10   13   164       71     5   2918564
9306102  Stella        50   154  92   140  130  108  139  119  207  129  2380      1268   4   3063820
2208001  Lares2        52   170  164  59   146  88   149  79   187  187  2989      1281   2   3115789
1603002  Galileo210    0    10   3    9    9    0    9    11   6    16   267       73     5   3149067
1801802  Beidou3m3     5    10   3    13   0    0    3    4    23   5    142       66     5   3168142
1507901  Galileo209    0    23   0    4    6    10   3    3    13   2    215       64     5   3552215
1802902  Beidou3m10    0    11   5    1    11   15   16   6    10   5    194       80     5   3782594
1802901  Beidou3m9     2    23   5    0    5    8    7    7    8    9    202       74     5   3945802
7501001  Starlette     57   209  152  259  149  166  202  160  280  181  4780      1815   4   4436620
1106002  Galileo102    11   27   11   3    17   12   10   13   11   6    336       121    5   7017936
8606101  Ajisai        143  378  285  394  232  262  241  211  452  262  6584      2860   4   7367384