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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:  Mon Jul 30 09:53:53 UTC 2018

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

1300301  Stsat2c       0    0    0    0    0    0    9    0    0    0         9      3   4320 
1801408  Snet3         0    27   30   16   7    9    48   0    0    18        155    3   35680
1801409  Snet4         1    48   6    29   19   8    45   42   17   10        225    3   47880
1801410  Snet1         0    16   38   41   47   0    47   7    0    0         196    3   49040
1306702  Swarma        30   80   5    23   109  33   50   48   69   101       548    2   52460
1306703  Swarmc        42   46   37   29   71   108  29   50   54   53        519    2   54520
1801407  Snet2         0    4    19   118  26   64   4    21   0    0         256    3   62760
1804702  Gracefo2      0    96   164  47   3    76   79   9    6    9         489    2   65340
1804701  Gracefo1      60   91   60   82   20   88   204  60   20   13        698    2   81640
1003001  Tandemx       0    39   30   38   85   145  182  92   114  7         732    3   133240
0702601  Terrasarx     35   69   19   15   153  111  212  63   49   20        746    3   154240
1306701  Swarmb        48   275  273  313  276  253  369  340  196  133       2476   2   265440
1704205  Technosat     0    22   30   59   48   64   142  66   42   43        516    3   282240
1601101  Sentinel3a    10   97   127  124  86   128  166  157  42   16        953    2   314880
1803901  Sentinel3b    16   139  169  185  127  222  152  134  61   45        1250   2   426420
1300901  Saral         23   155  122  216  195  130  308  138  89   80        1456   2   470220
1001301  Cryosat2      24   139  221  401  271  208  258  276  126  187       2111   2   661860
1304201  Kompsat5      0    156  169  240  218  228  248  152  211  69        1691   4   705840
0803201  Jason2        142  420  281  472  495  170  56   6    18   20        2080   2   892200
8903903  Etalon2       0    25   21   28   17   14   26   14   3    21        169    2   1120800
1600201  Jason3        173  396  231  397  551  416  736  386  256  240       3782   2   1209660
8900103  Etalon1       0    32   30   24   27   10   12   13   19   24        191    2   1268400
1104301  Hy2a          26   100  66   155  156  96   173  97   77   24        970    3   1284000
1200601  Lares         48   239  253  211  341  271  411  201  162  150       2287   2   1470480
6503201  Beaconc       0    98   108  242  239  162  251  215  135  129       1579   4   1855680
9207002  Lageos2       97   136  167  164  251  160  257  244  130  130       1736   1   2192160
0304206  Larets        47   57   102  110  89   109  181  81   90   84        950    4   2341920
7603901  Lageos1       20   116  189  224  263  340  332  306  139  154       2083   1   2467200
9306102  Stella        47   100  98   158  142  91   169  120  98   75        1098   4   2819520
1603401  Geoik2        42   144  73   171  210  208  234  120  82   86        1370   4   3524640
1405002  Galileo202    0    21   10   9    5    14   10   0    3    1         73     5   4598400
1201801  Compassm3     0    14   12   6    8    18   9    9    6    12        94     5   4694400
1603002  Galileo210    0    16   3    11   14   2    26   15   0    8         95     5   4761600
7501001  Starlette     145  210  224  316  275  319  356  219  149  144       2357   4   6293760
1106002  Galileo102    0    26   2    17   17   13   41   18   7    5         146    5   7420800
1507901  Galileo209    0    23   0    27   36   10   13   15   24   8         156    5   7824000
8606101  Ajisai        130  298  211  522  487  402  481  384  206  199       3320   4   8612640
1603201  Glonass136    13   13   15   17   11   24   43   29   30   13        208    5   9638400
1705501  Glonass137    0    20   21   24   24   16   18   38   31   20        212    5   9676800
1407501  Glonass134    8    21   29   15   14   26   35   21   10   32        211    5   10320000
1301901  Glonass131    4    19   16   13   32   58   69   19   15   19        264    5   12422400