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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:  Fri 17 Jan 11:56:32 UTC 2020

   Satellite     Days: 17   16   15   14   13   12   11   10   9    8        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         0    34   18   17   34   32   61   43   38   623       900    3   80200
1801409  Snet4         35   30   60   49   24   0    42   40   136  673       1089   3   112800
1306702  Swarma        49   100  126  51   136  34   152  51   146  2069      2914   2   137260
1306703  Swarmc        43   167  177  70   116  55   220  46   139  2033      3066   2   162780
1804701  Gracefo1      42   137  92   117  108  115  143  158  107  2629      3648   2   166400
1804702  Gracefo2      65   148  103  155  169  135  146  123  116  2402      3562   2   183340
0702601  Terrasarx     19   139  130  193  150  73   167  90   180  1954      3095   3   333960
1704205  Technosat     31   41   37   30   52   18   63   38   55   935       1300   3   359760
1306701  Swarmb        201  376  232  266  215  225  338  188  239  4557      6837   2   369560
1807001  Icesat2       0    80   103  116  60   105  130  121  219  1725      2659   2   377220
1003001  Tandemx       34   203  194  223  143  93   233  79   280  2089      3571   3   416840
1803901  Sentinel3b    73   172  173  99   133  191  151  72   233  2830      4127   2   613440
1601101  Sentinel3a    50   185  158  142  165  165  189  109  217  3088      4468   2   650580
1001301  Cryosat2      105  278  200  119  195  139  177  90   240  3073      4616   2   742860
1300901  Saral         74   191  275  177  275  108  253  193  204  3111      4861   2   791880
1304201  Kompsat5      23   390  328  181  193  106  75   100  235  3143      4774   4   1082560
8900103  Etalon1       0    27   20   18   2    30   34   31   40   442       644    2   1730400
1200601  Lares         116  310  252  236  233  137  204  143  252  3612      5495   2   1807440
8903903  Etalon2       6    35   46   22   28   20   33   15   13   354       572    2   2066400
1600201  Jason3        112  822  668  447  495  398  482  343  623  8425      12815  2   2074740
1808101  Hy2b          35   217  129  148  105  89   156  115  106  2068      3168   3   2086800
1104301  Hy2a          57   245  176  139  146  142  152  109  99   2039      3304   3   2379360
0304206  Larets        50   87   56   113  46   54   82   62   75   1498      2123   4   2510400
9207002  Lageos2       60   229  260  181  163  126  172  156  287  2900      4534   1   2939040
7603901  Lageos1       77   207  295  221  176  179  174  236  318  3174      5057   1   3289200
9306102  Stella        80   150  159  156  139  85   94   133  155  2081      3232   4   4290720
1802901  Beidou3m9     0    0    0    17   8    4    10   0    30   162       231    5   4310400
1602101  Compassi6b    0    10   0    3    14   11   11   4    12   132       197    5   4435200
1802902  Beidou3m10    0    0    0    23   11   4    14   2    9    168       231    5   4752000
1801802  Beidou3m3     0    0    0    5    16   13   7    13   2    235       291    5   4819200
6503201  Beaconc       50   424  489  291  393  217  380  146  468  4709      7567   4   5114640
1706902  Beidou3m2     0    0    0    16   4    3    0    14   42   274       353    5   5289600
1603401  Geoik2        57   240  240  205  241  114  218  129  176  2348      3968   4   5788800
1405002  Galileo202    12   12   9    9    15   17   18   8    22   187       309    5   8304000
7501001  Starlette     75   416  363  225  287  199  341  161  308  4050      6425   4   8737440
1507901  Galileo209    13   9    9    26   14   12   12   35   3    144       277    5   8755200
1603002  Galileo210    0    6    42   24   9    17   18   2    23   210       351    5   9897600
8606101  Ajisai        182  435  403  427  335  213  159  343  395  5170      8062   4   10871040
1805301  Glonass138    24   15   2    25   21   8    10   18   7    320       450    5   11136000
1106002  Galileo102    5    12   17   45   27   11   20   29   18   308       492    5   12835200
1808601  Glonass139    7    18   29   23   24   21   14   33   32   391       592    5   14246400
1301901  Glonass131    0    56   23   22   16   35   25   27   23   365       592    5   16368000
1407501  Glonass134    7    33   35   34   30   42   21   8    33   431       674    5   18048000