Home » SGF Operations » Dynamic Priorities

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 1 Mar 11:52:51 UTC 2021

   Satellite     Days: 1    28   27   26   25   24   23   22   21   20       TotalNP  p   Score

1801410  Snet1         0    0    0    0    0    0    0    0    0    0         0      3   0    
1306702  Swarma        0    33   59   71   210  149  234  172  64   1274      2266   2   122500
1306703  Swarmc        0    63   55   121  173  219  197  162  99   1282      2371   2   134820
1804702  Gracefo2      11   67   63   221  187  311  136  203  279  2330      3808   2   189640
1801409  Snet4         0    76   72   95   9    188  118  107  132  1080      1877   3   202240
1804701  Gracefo1      29   161  185  269  222  295  202  205  246  2537      4351   2   247220
1306701  Swarmb        83   201  101  349  390  516  390  385  249  3061      5725   2   341680
0702601  Terrasarx     20   44   91   238  245  198  289  184  156  1774      3239   3   369760
1807001  Icesat2       0    38   46   205  150  237  149  37   80   1824      2766   2   415260
1704205  Technosat     7    39   52   50   86   60   95   44   51   855       1339   3   416640
1003001  Tandemx       17   116  144  259  338  251  280  223  134  2150      3912   3   466760
1802001  Paz           34   112  152  399  427  535  327  324  320  3687      6317   3   688040
1803901  Sentinel3b    0    141  96   259  269  300  242  264  247  2504      4322   2   703320
1601101  Sentinel3a    23   139  175  268  251  250  204  230  318  2440      4298   2   725700
1304201  Kompsat5      0    6    83   32   351  463  387  264  54   1321      2961   4   730560
1001301  Cryosat2      26   198  108  324  266  328  206  307  197  2757      4717   2   798360
1300901  Saral         26   131  206  256  335  340  325  233  210  2597      4659   2   816300
2008601  Sentinel6a    40   145  262  450  416  315  328  375  176  2984      5491   2   1007700
1600201  Jason3        94   332  219  507  486  497  398  414  336  3769      7052   2   1314300
1200601  Lares         50   155  238  218  323  384  383  311  234  3055      5351   2   1820520
8900103  Etalon1       9    22   23   46   38   27   17   9    44   343       578    2   2019600
8903903  Etalon2       0    27   35   39   38   41   33   18   42   334       607    2   2199600
2006601  Hy2c          11   76   90   147  242  222  286  185  167  2092      3518   3   2215200
1808101  Hy2b          44   79   113  201  179  291  202  187  162  1847      3305   3   2287440
1602101  Compassi6b    0    0    0    4    6    8    4    10   10   105       147    5   2640000
0304206  Larets        28   69   63   123  92   166  103  106  107  1248      2105   4   2803200
9207002  Lageos2       52   171  228  190  336  263  317  237  294  3252      5340   1   3447120
7603901  Lageos1       43   135  203  255  300  335  341  284  315  3342      5553   1   3532080
9306102  Stella        37   75   102  165  153  223  168  117  136  1524      2700   4   3776640
1801802  Beidou3m3     4    0    13   6    10   5    8    7    17   81        151    5   4214400
1802901  Beidou3m9     2    1    3    15   14   15   12   9    8    114       193    5   5011200
1603401  Geoik2        35   135  161  221  229  256  216  231  310  2156      3950   4   5465760
1802902  Beidou3m10    4    7    4    5    22   19   10   4    14   143       232    5   5952000
6503201  Beaconc       0    330  277  544  499  615  761  568  546  4255      8395   4   6037920
1706902  Beidou3m2     5    4    3    2    29   29   10   7    9    134       232    5   6297600
7501001  Starlette     74   178  208  276  432  367  233  271  269  3571      5879   4   7785120
1808601  Glonass139    0    24   4    4    13   30   12   24   42   246       399    5   9158400
1507901  Galileo209    0    5    16   38   7    18   23   29   10   216       362    5   9465600
1407501  Glonass134    0    7    12   20   36   42   22   19   14   149       321    5   10051200
1603002  Galileo210    0    20   48   9    16   20   22   8    15   298       456    5   12124800
1805301  Glonass138    0    11   18   25   45   25   25   28   26   261       464    5   12576000
8606101  Ajisai        16   317  315  481  619  672  578  622  554  6198      10372  4   13179840
1301901  Glonass131    6    10   24   42   31   25   9    24   21   319       511    5   13593600
1106002  Galileo102    0    40   27   36   50   37   37   8    36   431       702    5   19084800