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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 20 Jun 12:58:54 UTC 2019

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

1801408  Snet3         0    0    0    0    0    0    0    0    0    0         0      3   0    
1801407  Snet2         0    0    0    12   0    0    0    0    0    0         12     3   3360 
1300301  Stsat2c       0    2    0    6    0    0    0    3    4    0         15     3   9240 
1801410  Snet1         0    23   66   93   0    43   0    13   12   17        267    3   67240
1801409  Snet4         0    79   57   91   9    30   9    29   8    10        322    3   86280
1804702  Gracefo2      69   136  72   92   42   80   96   118  26   94        825    2   93400
1107301  Compassi5     0    0    0    0    0    2    0    0    0    0         2      5   96000
1306703  Swarmc        0    134  123  119  60   114  124  97   42   62        875    2   97720
1804701  Gracefo1      38   130  162  126  30   75   85   87   107  96        936    2   103880
1306702  Swarma        0    148  171  150  46   60   62   176  46   43        902    2   104740
1807001  Icesat2       0    35   45   0    96   20   70   108  38   49        461    2   124800
0702601  Terrasarx     11   85   185  167  35   44   89   96   82   88        882    3   194000
1003001  Tandemx       12   145  243  140  54   46   56   205  80   85        1066   3   239480
1306701  Swarmb        64   375  332  363  69   188  133  386  201  185       2296   2   256860
1704205  Technosat     0    54   62   84   26   49   56   39   33   37        440    3   289800
1601101  Sentinel3a    30   146  115  129  26   131  169  101  93   164       1104   2   334620
1300901  Saral         43   186  188  93   33   52   93   130  98   95        1011   2   346200
1304201  Kompsat5      26   101  180  92   58   108  109  84   35   115       908    4   401120
1803901  Sentinel3b    35   186  134  140  24   138  134  236  224  171       1422   2   406380
1001301  Cryosat2      73   211  190  259  42   103  116  117  112  105       1328   2   472380
1501701  Galileo203    0    0    1    6    3    0    0    2    0    7         19     5   777600
1200601  Lares         48   164  138  190  42   41   174  226  118  74        1215   2   783720
8903903  Etalon2       0    17   19   27   1    5    11   15   12   23        130    2   793200
0803201  Jason2        80   455  367  449  68   96   362  452  264  280       2873   2   928440
1802901  Beidou3m9     0    2    2    0    0    0    2    21   0    0         27     5   1008000
1104301  Hy2a          38   111  99   118  49   67   64   98   69   101       814    3   1059600
1600201  Jason3        133  481  443  538  113  215  371  531  435  257       3517   2   1135560
1802902  Beidou3m10    0    0    0    8    1    2    2    14   0    0         27     5   1171200
1405002  Galileo202    0    1    1    5    0    0    1    13   20   0         41     5   1296000
1808101  Hy2b          41   160  141  101  49   54   130  174  96   84        1030   3   1336080
8900103  Etalon1       0    44   39   40   0    9    7    19   14   23        195    2   1402800
1706902  Beidou3m2     0    0    2    9    5    7    0    2    2    2         29     5   1497600
9207002  Lageos2       36   223  150  207  95   94   132  119  107  74        1237   1   1734960
0304206  Larets        19   103  138  64   42   49   109  76   40   58        698    4   1904640
1801802  Beidou3m3     0    2    3    6    11   0    4    12   0    0         38     5   1939200
1602101  Compassi6b    0    4    6    6    5    2    3    6    6    3         41     5   2025600
9306102  Stella        25   140  141  96   55   33   99   103  36   77        805    4   2236320
1603001  Galileo211    0    6    14   0    1    4    3    8    4    0         40     5   2265600
1201801  Compassm3     0    5    5    4    6    0    6    12   8    12        58     5   2275200
1606903  Galileo213    2    3    12   10   1    3    0    9    2    0         42     5   2544000
7603901  Lageos1       82   327  366  216  119  136  132  176  112  157       1823   1   2648160
1603401  Geoik2        34   201  206  184  45   66   86   48   31   30        931    4   3007200
1205501  Galileo103    0    6    6    17   8    7    9    0    0    7         60     5   3331200
6503201  Beaconc       31   290  295  444  183  566  418  163  328  334       3052   4   3712080
1507901  Galileo209    0    23   0    14   5    5    16   14   6    3         86     5   4617600
1603002  Galileo210    2    8    9    23   0    8    21   14   2    2         89     5   4771200
7501001  Starlette     32   268  310  342  137  257  278  205  301  267       2397   4   5908320
1705501  Glonass137    1    15   20   14   10   7    11   16   22   14        130    5   6220800
1106002  Galileo102    0    17   14   36   7    9    10   21   5    10        129    5   6979200
8606101  Ajisai        79   373  351  434  150  316  406  382  367  345       3203   4   7834560
1407501  Glonass134    5    16   22   31   8    9    13   38   13   26        181    5   8620800
1603201  Glonass136    1    15   20   40   25   20   14   24   14   3         176    5   9542400
1301901  Glonass131    8    25   39   33   12   11   22   8    22   5         185    5   10905600