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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 Feb 20 22:51:54 UTC 2018

   Satellite     Days: 20   19   18   17   16   15   14   13   12   11       TotalNP  p   Score

1503702  Compassms1    0    0    0    0    0    0    0    0    0    3         3      5   28800
1300301  Stsat2c       0    10   0    0    0    4    18   16   16   0         64     3   31440
1306702  Swarma        37   43   50   41   151  48   55   164  129  137       855    2   73940
1306703  Swarmc        76   15   64   50   136  117  96   149  125  83        911    2   86440
1003001  Tandemx       27   63   23   96   124  159  154  77   103  111       937    3   175840
1306701  Swarmb        108  176  122  147  155  121  281  346  224  202       1882   2   180320
0702601  Terrasarx     27   78   30   97   133  134  159  104  209  166       1137   3   195640
1704205  Technosat     43   16   22   42   57   34   57   49   51   39        410    3   248640
1300901  Saral         50   70   42   124  140  168  274  181  186  194       1429   2   373140
1001301  Cryosat2      80   60   115  104  257  116  189  234  267  154       1576   2   435360
1601101  Sentinel3a    123  108  71   109  172  104  238  238  217  138       1518   2   439380
0200901  Envisat       14   7    8    13   23   30   0    71   41   30        237    5   466080
8903903  Etalon2       0    5    5    11   32   7    7    22   13   23        125    2   638400
1304201  Kompsat5      155  162  0    10   263  262  253  267  310  0         1682   4   671920
1104301  Hy2a          31   33   29   43   110  87   91   122  96   46        688    3   768720
8900103  Etalon1       13   10   15   16   15   11   26   17   25   30        178    2   998400
1200601  Lares         60   64   139  128  284  200  206  329  255  271       1936   2   1017600
0803201  Jason2        231  144  183  334  418  453  583  397  655  393       3791   2   1044420
1600201  Jason3        221  204  237  336  538  337  589  486  563  454       3965   2   1116060
0304206  Larets        27   34   17   67   44   56   106  93   84   77        605    4   1283040
9306102  Stella        27   58   43   49   67   0    107  131  104  101       687    4   1445280
6503201  Beaconc       44   55   163  147  216  66   93   203  301  196       1484   4   1601520
9207002  Lageos2       52   46   118  191  235  109  202  229  214  240       1636   1   1759920
7603901  Lageos1       46   63   114  157  249  125  213  339  226  203       1735   1   1843440
1603401  Geoik2        17   63   73   98   146  141  84   96   127  66        911    4   2175360
1603002  Galileo210    0    12   3    6    11   11   12   2    21   14        92     5   3888000
1201801  Compassm3     3    13   3    5    2    23   6    15   18   11        99     5   4310400
7501001  Starlette     86   105  93   230  160  208  338  341  210  216       1987   4   4401600
1507901  Galileo209    4    3    18   19   8    9    16   0    8    17        102    5   5126400
1405002  Galileo202    2    6    4    31   19   0    8    8    4    37        119    5   5164800
8606101  Ajisai        150  177  281  170  252  244  327  452  346  346       2745   4   6223200
1705501  Glonass137    9    7    11   14   12   31   26   12   5    19        146    5   7056000
1603201  Glonass136    6    19   13   12   21   14   35   19   20   41        200    5   8572800
1106002  Galileo102    11   0    19   23   19   36   20   12   18   30        188    5   8630400
1301901  Glonass131    6    23   17   20   25   11   24   20   31   18        195    5   9446400
1407501  Glonass134    16   24   7    27   41   19   35   26   29   29        253    5   12163200