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:  Tue 28 Jan 22:53:57 UTC 2025

   Satellite     Days: 28   27   26   25   24   23   22   21   20   19   -30    TotalNP  p   Score

1600201  Jason3        0    0    0    0    0    0    0    0    18   8    3068      26     2   5708 
1306703  Swarmc        24   70   0    25   62   20   9    46   0    16   1099      272    2   35239
1306702  Swarma        24   56   0    28   146  31   9    38   25   30   1407      387    2   45427
1804701  Gracefo1      27   72   25   39   53   32   49   157  88   112  1784      654    2   58264
1804702  Gracefo2      70   112  17   35   67   26   10   59   5    63   1578      464    2   59798
1807001  Icesat2       67   33   0    0    97   37   10   20   17   18   1014      299    2   114174
1306701  Swarmb        71   153  41   35   153  93   193  134  167  56   2497      1096   2   114637
0702601  Terrasarx     13   127  35   32   74   60   48   32   48   26   1913      495    3   119153
1003001  Tandemx       24   121  74   107  66   56   24   71   83   107  1965      733    3   159085
1803901  Sentinel3b    52   96   22   12   97   48   34   61   12   89   2135      523    2   176015
1601101  Sentinel3a    83   85   26   48   86   46   53   77   64   24   2100      592    2   210900
1802001  Paz           61   141  44   200  90   187  139  100  97   115  3559      1174   3   254399
1001301  Cryosat2      34   87   89   70   150  109  183  142  161  113  2544      1138   2   324324
1300901  Saral         65   68   30   102  150  224  158  102  226  218  2783      1343   2   353423
9804305  Westpac       7    26   52   24   17   54   47   12   33   30   570       302    4   379770
2217301  Swot          61   147  65   162  143  200  199  145  217  196  3989      1535   2   442349
8900103  Etalon1       0    12   14   10   8    1    2    17   13   18   328       95     2   535528
8903903  Etalon2       0    8    8    3    20   10   4    19   18   27   316       117    2   555916
2008601  Sentinel6a    163  213  166  132  227  244  380  165  523  385  5339      2598   2   714959
1200601  Lares         141  105  81   88   119  68   202  140  283  195  3119      1422   2   802559
2104301  Hy2d          37   114  23   0    38   40   190  134  181  181  2016      938    3   893136
1808101  Hy2b          38   97   79   103  57   47   163  89   163  81   2280      917    3   1084440
1602101  Compassi6b    0    0    0    7    5    8    1    2    0    8    105       31     5   1315305
0304206  Larets        19   70   43   45   44   72   76   42   105  48   1270      564    4   1340950
9207002  Lageos2       34   198  91   105  63   42   122  163  149  133  3095      1100   1   1342535
7603901  Lageos1       38   157  115  116  150  57   189  157  155  157  2653      1291   1   1539613
2006601  Hy2c          36   94   98   134  157  196  212  210  264  277  2580      1678   3   1714500
1507901  Galileo209    1    0    2    9    2    5    7    7    4    6    142       43     5   1814542
1802901  Beidou3m9     0    3    0    1    18   7    2    2    0    0    167       33     5   1833767
1801802  Beidou3m3     0    4    0    0    2    8    7    13   11   16   183       61     5   1852983
9306102  Stella        78   85   58   75   61   44   102  106  126  146  2473      881    4   2039593
1802902  Beidou3m10    0    5    2    6    6    11   0    11   0    7    107       48     5   2246507
2208001  Lares2        56   124  56   104  111  30   128  126  80   189  2318      1004   2   2357678
1106002  Galileo102    0    8    3    0    0    10   23   10   2    21   325       77     5   2813125
1603002  Galileo210    0    8    13   0    8    5    5    4    2    14   215       59     5   2870615
6503201  Beaconc       30   178  249  349  317  362  412  564  264  212  3464      2937   4   3394424
1706902  Beidou3m2     0    6    0    14   18   7    13   0    2    3    111       63     5   3398511
7501001  Starlette     93   203  121  196  130  111  216  244  363  287  5015      1964   4   4344695
1405002  Galileo202    6    7    2    14   16   8    5    22   0    3    290       83     5   4435490
8606101  Ajisai        156  353  263  330  189  272  405  419  439  373  8905      3199   4   7579945