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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:  Tue 10 Dec 17:53:57 UTC 2019

   Satellite     Days: 10   9    8    7    6    5    4    3    2    1        TotalNP  p   Score

1300301  Stsat2c       0    0    0    0    0    0    0    0    0    0         0      3   0    
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         23   68   47   9    14   63   143  51   104  0         522    3   104520
1306702  Swarma        70   132  92   90   83   88   211  96   203  37        1102   2   115340
1306703  Swarmc        56   117  65   67   140  188  140  166  186  41        1166   2   117060
1804702  Gracefo2      71   83   118  63   145  275  253  178  207  35        1428   2   141640
1801409  Snet4         49   72   35   87   51   126  79   59   63   20        641    3   144080
1804701  Gracefo1      52   190  166  46   148  239  147  169  195  34        1386   2   149640
0702601  Terrasarx     36   130  147  22   125  131  159  98   181  52        1081   3   224360
1003001  Tandemx       53   127  131  51   185  179  143  110  181  45        1205   3   255680
1306701  Swarmb        99   175  246  141  504  370  290  214  359  106       2504   2   260400
1807001  Icesat2       42   95   61   58   136  100  116  124  67   94        893    2   272940
1704205  Technosat     11   49   31   51   11   51   96   86   90   18        494    3   278040
1601101  Sentinel3a    61   166  129  136  86   158  170  115  81   70        1172   2   399060
1803901  Sentinel3b    87   169  152  83   138  203  155  123  95   64        1269   2   436440
1300901  Saral         57   131  165  105  314  256  217  116  93   44        1498   2   504840
1001301  Cryosat2      93   191  162  178  156  257  239  214  188  78        1756   2   567840
1304201  Kompsat5      45   212  109  146  242  410  502  337  192  0         2195   4   892560
1200601  Lares         38   89   162  142  188  241  216  210  222  89        1597   2   939720
1600201  Jason3        145  295  302  246  368  514  402  410  405  217       3304   2   1013160
8903903  Etalon2       8    17   18   11   12   27   31   22   30   9         185    2   1104000
1104301  Hy2a          37   109  84   55   211  181  67   79   91   78        992    3   1282560
1808101  Hy2b          40   104  107  73   153  160  135  133  135  39        1079   3   1360560
8900103  Etalon1       13   40   29   6    16   16   42   47   37   16        262    2   1606800
0304206  Larets        39   59   72   43   78   138  91   97   88   67        772    4   1849920
6503201  Beaconc       153  215  211  45   133  300  115  165  96   22        1455   4   2144400
9207002  Lageos2       89   214  198  105  219  243  276  232  213  110       1899   1   2400000
7603901  Lageos1       80   261  195  167  237  277  328  264  286  145       2240   1   2761440
9306102  Stella        43   132  89   78   175  160  159  167  127  52        1182   4   2961120
1603401  Geoik2        76   163  75   102  261  242  177  201  197  54        1548   4   3876480
1602101  Compassi6b    0    8    9    6    7    11   18   6    26   5         96     5   4128000
1802902  Beidou3m10    2    14   13   2    10   8    9    14   24   0         96     5   4704000
1802901  Beidou3m9     5    20   11   0    2    6    16   17   15   4         96     5   4886400
1706902  Beidou3m2     13   14   4    0    15   8    9    16   18   5         102    5   5212800
1603002  Galileo210    5    12   9    6    13   15   10   22   20   3         115    5   5510400
1405002  Galileo202    0    12   14   4    15   12   19   25   23   7         131    5   5779200
7501001  Starlette     108  277  206  50   297  328  373  389  316  153       2497   4   5969760
1801802  Beidou3m3     8    20   42   8    12   11   15   11   6    26        159    5   8736000
1507901  Galileo209    13   13   26   8    10   23   35   16   10   18        172    5   8755200
8606101  Ajisai        184  400  242  215  338  484  578  479  662  201       3783   4   8929440
1106002  Galileo102    9    18   27   5    7    28   40   26   24   12        196    5   9436800
1805301  Glonass138    27   16   11   4    29   28   23   15   47   20        220    5   10512000
1301901  Glonass131    14   29   12   10   15   28   52   26   39   8         233    5   11222400
1808601  Glonass139    6    27   20   5    27   41   48   26   46   22        268    5   11990400
1407501  Glonass134    13   31   50   11   42   26   40   30   27   32        302    5   15398400