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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:  Thu 18 Oct 12:54:42 UTC 2018

   Satellite     Days: 18   17   16   15   14   13   12   11   10   9        TotalNP  p   Score

1300301  Stsat2c       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    
1801407  Snet2         0    0    0    0    0    0    6    0    0    2         8      3   1040 
1801410  Snet1         11   41   23   46   10   83   37   35   7    0         293    3   69080
1801409  Snet4         17   45   71   48   61   57   90   40   37   70        536    3   110160
1306703  Swarmc        25   96   116  203  62   89   161  151  160  110       1173   2   116140
1306702  Swarma        33   157  153  200  76   106  69   167  135  65        1161   2   129300
1804701  Gracefo1      25   170  144  139  82   93   285  128  193  58        1317   2   136600
1804702  Gracefo2      14   191  172  148  79   109  255  98   138  92        1296   2   139440
1704205  Technosat     14   24   41   31   20   25   69   63   49   63        399    3   212640
1306701  Swarmb        149  364  268  287  357  263  344  157  415  242       2846   2   305900
1003001  Tandemx       63   144  209  193  160  118  185  85   120  124       1401   3   314320
1803901  Sentinel3b    51   85   100  123  96   89   120  178  174  176       1192   2   329700
0702601  Terrasarx     88   168  221  175  178  185  172  82   198  147       1614   3   354200
1601101  Sentinel3a    32   96   175  104  98   121  117  152  161  168       1224   2   355140
1304201  Kompsat5      27   101  426  185  226  196  125  59   209  197       1751   4   760800
1001301  Cryosat2      77   364  331  233  184  303  241  261  282  320       2596   2   814500
1300901  Saral         65   338  487  291  202  280  288  261  276  255       2743   2   898740
8903903  Etalon2       2    15   27   28   13   11   21   19   19   10        165    2   1066800
8900103  Etalon1       9    26   24   16   12   30   36   42   48   12        255    2   1473600
1200601  Lares         106  311  252  285  297  318  343  152  335  132       2531   2   1664640
1104301  Hy2a          79   208  225  137  0    0    206  149  150  112       1266   3   1704960
6503201  Beaconc       62   190  207  202  49   126  226  280  154  253       1749   4   2070960
0803201  Jason2        169  685  1003 809  410  646  855  671  641  816       6705   2   2085780
0304206  Larets        21   102  69   113  69   89   117  96   104  78        858    4   2098560
1600201  Jason3        83   749  1033 951  565  726  1063 887  828  900       7785   2   2338860
1107301  Compassi5     0    7    11   0    9    2    5    13   6    4         57     5   2784000
7603901  Lageos1       73   230  258  288  226  207  325  260  308  253       2428   1   2932800
9207002  Lageos2       29   291  323  268  214  217  366  215  345  235       2503   1   3065280
1602101  Compassi6b    10   2    5    9    0    9    0    12   8    6         61     5   3110400
1405002  Galileo202    0    6    11   0    11   0    12   15   25   7         87     5   3436800
9306102  Stella        113  124  136  157  95   137  189  121  180  124       1376   4   3499680
1802902  Beidou3m10    0    5    9    15   14   5    0    26   8    8         90     5   4156800
1603401  Geoik2        13   64   266  273  190  201  286  182  279  181       1935   4   4473120
1706902  Beidou3m2     0    6    14   11   12   14   7    8    37   4         113    5   4944000
1802901  Beidou3m9     6    4    12   9    16   23   4    28   6    0         108    5   5548800
1606903  Galileo213    0    5    24   17   10   13   13   20   13   29        144    5   6220800
1801802  Beidou3m3     0    21   15   8    12   14   11   16   19   21        137    5   6316800
1507901  Galileo209    5    16   11   9    21   7    15   21   12   48        165    5   6729600
1201801  Compassm3     5    23   6    6    18   20   25   9    10   8         130    5   6816000
7501001  Starlette     206  336  250  372  220  271  240  170  304  189       2558   4   7022400
1106002  Galileo102    3    18   4    11   23   10   22   32   25   16        164    5   7094400
1205501  Galileo103    5    15   16   8    22   15   30   7    23   30        171    5   7612800
1501701  Galileo203    15   12   14   24   7    15   27   12   7    7         140    5   7872000
1603002  Galileo210    0    9    21   25   5    37   30   25   5    31        188    5   8400000
8606101  Ajisai        134  401  492  378  200  282  490  423  604  503       3907   4   9158880
1603001  Galileo211    2    50   14   11   26   19   3    36   25   16        202    5   10521600
1705501  Glonass137    6    20   35   25   23   25   32   47   27   31        271    5   12595200
1603201  Glonass136    8    32   47   30   24   31   26   35   45   78        356    5   15648000
1301901  Glonass131    14   40   43   19   36   33   18   38   34   61        336    5   16060800
1407501  Glonass134    4    53   63   66   38   32   27   36   48   54        421    5   21475200