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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 13 Dec 07:54:30 UTC 2018

   Satellite     Days: 13   12   11   10   9    8    7    6    5    4        TotalNP  p   Score

1801408  Snet3         0    0    0    0    0    0    0    0    9    0         9      3   720  
1801410  Snet1         0    0    0    0    0    0    0    6    0    14        20     3   1280 
1300301  Stsat2c       0    5    10   0    0    0    0    6    0    1         22     3   17280
1801407  Snet2         0    6    0    8    0    16   54   14   0    31        129    3   19160
1801409  Snet4         0    19   73   10   4    13   11   17   16   60        223    3   44040
1306702  Swarma        17   101  57   56   38   67   75   78   58   81        628    2   64420
1306703  Swarmc        15   184  69   48   50   43   85   40   75   171       780    2   79800
1107301  Compassi5     0    0    0    0    0    0    0    2    0    4         6      5   96000
1804701  Gracefo1      24   99   183  74   52   160  89   91   135  143       1050   2   105340
1804702  Gracefo2      12   43   198  108  74   142  121  163  147  170       1178   2   108760
1807001  Icesat2       0    111  42   13   49   5    54   37   53   51        415    2   133740
1704205  Technosat     8    5    26   4    35   40   54   43   39   76        330    3   152400
1306701  Swarmb        22   138  296  64   198  113  154  157  175  385       1702   2   157060
1803901  Sentinel3b    26   72   76   61   103  48   83   73   49   116       707    2   213960
1003001  Tandemx       25   138  172  73   68   76   145  117  142  139       1095   3   220840
1601101  Sentinel3a    38   83   41   100  79   41   88   71   139  111       791    2   227280
0702601  Terrasarx     25   177  142  136  93   57   86   59   151  150       1076   3   229880
1300901  Saral         33   192  197  108  129  82   149  109  78   134       1211   2   407220
1001301  Cryosat2      37   185  214  119  78   116  235  143  200  153       1480   2   453000
8903903  Etalon2       0    5    11   3    29   13   10   15   9    6         101    2   602400
8900103  Etalon1       0    11   18   11   6    9    14   10   11   5         95     2   616800
1304201  Kompsat5      23   176  370  83   194  159  367  165  119  188       1844   4   776240
0803201  Jason2        74   323  296  169  224  216  358  344  319  321       2644   2   782700
1600201  Jason3        76   356  274  184  234  286  375  216  142  357       2500   2   784020
1808101  Hy2b          15   80   111  45   36   68   92   32   104  104       687    3   817200
1200601  Lares         36   208  201  93   155  116  248  200  141  269       1667   2   977280
1104301  Hy2a          30   160  110  112  109  81   142  51   99   74        968    3   1309440
1706902  Beidou3m2     0    3    2    0    0    0    5    8    27   7         52     5   1420800
0304206  Larets        17   66   87   29   63   33   112  65   50   81        603    4   1454400
7603901  Lageos1       21   162  190  94   87   102  204  146  199  170       1375   1   1608000
9207002  Lageos2       5    252  206  72   58   93   175  181  155  170       1367   1   1681440
1802902  Beidou3m10    0    4    6    0    9    0    5    3    5    4         36     5   1737600
1501701  Galileo203    0    3    4    0    16   2    0    4    0    5         34     5   1747200
1802901  Beidou3m9     0    5    4    3    5    3    5    4    6    13        48     5   1920000
1603001  Galileo211    0    0    5    3    7    4    10   14   0    0         43     5   1968000
6503201  Beaconc       36   216  379  104  108  113  165  149  137  254       1661   4   2138880
9306102  Stella        40   103  112  64   69   76   121  76   133  129       923    4   2194560
1606903  Galileo213    0    9    10   5    4    0    2    0    10   10        50     5   2476800
1602101  Compassi6b    0    2    5    2    21   6    10   0    0    4         50     5   2611200
1603002  Galileo210    0    2    5    0    12   11   8    5    18   7         68     5   2640000
1507901  Galileo209    0    0    12   8    5    0    11   11   8    24        79     5   2870400
1405002  Galileo202    0    4    11   1    6    0    14   10   22   7         75     5   2918400
1201801  Compassm3     10   0    1    3    23   6    4    0    0    7         54     5   3072000
1801802  Beidou3m3     0    4    8    6    19   11   5    0    3    5         61     5   3283200
1603401  Geoik2        29   236  150  89   81   81   251  115  105  248       1385   4   3328800
7501001  Starlette     16   205  249  112  112  81   224  190  213  217       1619   4   3824160
1205501  Galileo103    0    13   30   3    2    4    4    0    0    9         65     5   4176000
1106002  Galileo102    0    4    23   4    8    9    10   20   31   19        128    5   5011200
1301901  Glonass131    2    18   18   8    24   8    18   16   13   9         134    5   6921600
8606101  Ajisai        127  322  291  193  265  262  375  456  344  532       3167   4   7120800
1705501  Glonass137    0    12   25   11   12   25   31   32   19   19        186    5   8246400
1603201  Glonass136    6    23   13   3    19   18   20   41   40   31        214    5   8736000
1407501  Glonass134    0    25   38   2    23   7    28   41   32   32        228    5   10051200