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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 25 Sep 23:53:56 UTC 2026

   Satellite     Days: 25   24   23   22   21   20   19   18   17   16   -30    TotalNP  p   Score

1602101  Compassi6b    0    0    0    0    0    0    0    0    0    0    0         0      5   0    
2606501  Lpntsat001    25   0    0    0    0    0    0    0    0    0    159       25     2   5159 
2318518  Nanoffa       7    0    0    0    0    10   0    0    0    12   24        29     4   31704
1306703  Swarmc        55   21   35   67   76   75   19   4    22   90   500       464    2   51320
1306702  Swarma        50   13   96   51   49   79   28   11   40   61   538       478    2   54878
1804702  Gracefo2      107  62   107  111  102  93   41   29   69   74   958       795    2   96978
1804701  Gracefo1      75   84   132  114  89   148  54   15   90   49   1093      850    2   103573
1807001  Icesat2       93   140  131  95   140  13   0    0    60   211  1669      883    2   104449
0702601  Terrasarx     38   78   120  89   47   45   24   110  30   48   1169      629    3   149409
1306701  Swarmb        102  70   79   316  144  171  102  211  127  152  2794      1474   2   155994
1003001  Tandemx       64   80   204  118  41   53   30   59   81   44   1285      774    3   194565
1802001  Paz           111  136  367  313  86   155  101  210  111  192  2477      1782   3   410477
1300901  Saral         150  160  177  223  51   80   90   159  76   113  1944      1279   2   465444
1601101  Sentinel3a    183  102  175  229  127  77   48   105  153  94   2122      1293   2   470422
9804305  Westpac       28   18   105  39   24   32   17   15   7    21   521       306    4   482201
1803901  Sentinel3b    165  160  229  172  112  89   48   122  134  189  2036      1420   2   497516
1001301  Cryosat2      215  127  169  220  94   147  101  160  153  233  2760      1619   2   537180
2217301  Swot          163  222  260  253  175  134  120  201  227  240  3818      1995   2   662378
2526401  Sentinel6b    263  196  335  327  231  117  143  207  314  277  3438      2410   2   809358
2614901  Hy2e          65   84   85   94   51   37   28   33   13   82   953       572    3   853913
2104301  Hy2d          151  76   47   56   90   43   42   106  112  175  2447      898    3   1106927
8900103  Etalon1       11   10   33   27   18   9    10   10   17   19   319       164    2   1115119
2008601  Sentinel6a    326  314  608  374  268  240  260  213  306  338  4089      3247   2   1144389
8903903  Etalon2       19   18   22   15   22   9    10   23   20   13   281       171    2   1166681
1200601  Lares         206  133  223  276  186  93   97   205  169  202  3323      1790   2   1214963
1808101  Hy2b          93   101  162  172  49   51   62   104  66   85   1498      945    3   1361098
1600201  Jason3        447  380  706  524  437  325  352  399  599  479  4617      4648   2   1548717
0304206  Larets        31   98   124  54   65   56   23   51   32   44   1018      578    4   1721818
2006601  Hy2c          191  138  209  219  159  117  91   153  96   141  1896      1514   3   2174376
7603901  Lageos1       189  180  253  230  121  91   25   123  111  188  2461      1511   1   2211421
9207002  Lageos2       185  167  230  244  182  153  48   79   139  271  2903      1698   1   2339543
1801802  Beidou3m3     6    2    7    2    8    6    2    8    0    2    100       43     5   2496100
6503201  Beaconc       207  174  330  145  234  191  95   138  50   109  2060      1673   4   2558780
1706902  Beidou3m2     2    4    12   3    9    3    0    3    7    9    114       52     5   2630514
1802902  Beidou3m10    2    11   3    4    17   3    2    0    0    20   156       62     5   3033756
1802901  Beidou3m9     0    8    4    4    18   8    4    2    3    10   107       61     5   3052907
2608701  Gps083        5    8    9    15   8    5    6    0    0    0    130       56     5   3801730
9306102  Stella        129  114  208  194  150  106  93   120  144  157  2073      1415   4   3815673
2208001  Lares2        198  162  308  188  153  127  68   68   97   235  2523      1604   2   4647003
7501001  Starlette     204  155  267  233  192  152  45   118  97   173  3400      1636   4   4810600
1405002  Galileo202    5    7    16   25   14   15   3    10   9    12   225       116    5   6211425
2601701  Gps082        14   8    23   12   10   8    4    4    17   14   192       114    5   6297792
8606101  Ajisai        280  293  488  444  384  264  271  343  462  386  6177      3615   4   9364257