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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:  Wed 15 Jul 06:56:28 UTC 2020

   Satellite     Days: 15   14   13   12   11   10   9    8    7    6        TotalNP  p   Score

1801407  Snet2         0    0    0    0    0    0    0    0    0    0         0      3   0    
1801408  Snet3         0    0    0    0    0    0    0    0    0    0         0      3   0    
1801410  Snet1         0    102  12   67   26   26   0    40   51   1121      1445   3   124480
1306703  Swarmc        0    100  178  113  91   146  93   186  68   2125      3100   2   151640
1801409  Snet4         0    122  30   27   58   57   47   107  54   1192      1694   3   158760
1306702  Swarma        0    107  159  157  133  113  123  163  55   2258      3268   2   160920
1804702  Gracefo2      0    192  148  68   94   262  130  133  177  2952      4156   2   189740
1804701  Gracefo1      0    134  182  86   169  199  169  164  132  3375      4610   2   201600
1003001  Tandemx       7    67   35   244  154  173  130  198  102  2592      3702   3   334400
1807001  Icesat2       45   36   82   118  83   138  94   23   26   1796      2441   2   344220
0702601  Terrasarx     0    189  145  254  128  158  154  186  119  2739      4072   3   413920
1306701  Swarmb        0    300  262  362  482  275  387  375  288  7193      9924   2   440780
1704205  Technosat     21   56   44   66   69   52   56   17   51   1326      1758   3   468600
1304201  Kompsat5      105  71   0    0    0    0    42   66   41   3947      4272   4   486720
1802001  Paz           43   293  221  308  275  269  288  226  200  4872      6995   3   683520
1300901  Saral         35   150  169  195  202  161  192  189  172  3486      4951   2   695940
1803901  Sentinel3b    63   155  188  137  204  126  180  153  136  4174      5516   2   718020
1601101  Sentinel3a    62   105  220  250  246  241  252  189  172  4636      6373   2   858660
1001301  Cryosat2      37   252  196  229  237  160  231  255  220  4479      6296   2   878340
8903903  Etalon2       0    12   6    12   15   7    26   6    12   261       357    2   926400
1200601  Lares         7    227  182  177  167  127  150  227  231  3938      5433   2   1455120
8900103  Etalon1       1    18   8    31   22   25   13   16   19   456       609    2   1564800
1104301  Hy2a          18   178  82   107  112  108  109  30   29   1602      2375   3   1580400
1600201  Jason3        29   431  552  474  313  430  493  433  617  8058      11830  2   1709640
1602101  Compassi6b    0    0    0    0    11   4    4    14   4    47        84     5   1910400
1802901  Beidou3m9     0    0    0    9    3    3    7    3    1    99        125    5   2246400
1808101  Hy2b          17   179  116  154  132  162  107  144  174  2775      3960   3   2249280
7603901  Lageos1       0    164  146  212  148  149  160  140  193  3289      4601   1   2519040
1802902  Beidou3m10    0    0    2    6    11   6    3    0    1    101       130    5   2582400
1405002  Galileo202    0    10   5    0    5    3    4    2    3    90        122    5   2812800
9207002  Lageos2       42   169  211  238  144  220  129  166  111  3894      5324   1   2973360
0304206  Larets        7    85   158  116  92   116  53   111  140  2070      2948   4   3330240
9306102  Stella        13   120  108  135  137  113  135  139  140  2586      3626   4   3949920
6503201  Beaconc       77   435  439  202  129  277  252  234  276  3418      5739   4   4188000
1706902  Beidou3m2     0    9    10   6    5    8    4    2    7    201       252    5   4896000
1603401  Geoik2        25   152  196  160  187  120  192  132  128  3259      4551   4   5139360
1603002  Galileo210    0    7    24   4    5    2    6    0    15   190       253    5   5443200
1507901  Galileo209    0    4    16   12   13   2    13   4    6    260       330    5   6451200
1801802  Beidou3m3     2    6    14   11   9    3    9    23   8    257       342    5   6816000
1106002  Galileo102    0    7    17   13   14   21   3    5    24   276       380    5   7968000
7501001  Starlette     15   315  236  218  231  277  218  257  350  5480      7597   4   8156640
8606101  Ajisai        48   343  525  287  223  312  350  313  452  7602      10455  4   11289120
1805301  Glonass138    0    12   19   27   17   21   32   10   24   536       698    5   13420800
1808601  Glonass139    3    28   20   29   24   18   11   12   7    451       603    5   13670400
1407501  Glonass134    2    29   23   23   16   29   16   13   18   445       614    5   13929600
1301901  Glonass131    0    13   28   29   37   14   23   35   10   502       691    5   14928000