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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 18 Aug 12:53:50 UTC 2022

   Satellite     Days: 18   17   16   15   14   13   12   11   10   9        TotalNP  p   Score

1301901  Glonass131    0    0    0    0    0    0    0    0    0    0         0      5   0    
1407501  Glonass134    0    0    0    0    0    0    0    0    0    0         0      5   0    
1805301  Glonass138    0    0    0    0    0    0    0    0    0    0         0      5   0    
1808601  Glonass139    0    0    0    0    0    0    0    0    0    0         0      5   0    
2105922  Tubin         0    0    0    0    0    0    0    0    0    68        68     3   8160 
2102239  Elsadtgt      0    0    0    0    0    0    0    0    0    257       257    3   10280
2102213  Elsadchs      0    9    19   0    0    0    6    8    23   457       522    3   31360
1304201  Kompsat5      0    0    0    0    0    0    63   0    70   588       721    4   78400
1306702  Swarma        58   73   77   57   18   62   144  89   15   762       1355   2   86100
1306703  Swarmc        97   133  58   24   12   41   157  92   17   1011      1642   2   100500
1804701  Gracefo1      112  120  84   48   45   38   144  106  108  1394      2199   2   123440
1804702  Gracefo2      66   123  94   143  39   129  99   86   62   1098      1939   2   125500
1306701  Swarmb        76   37   162  6    105  2    281  268  87   2248      3272   2   148420
0702601  Terrasarx     1    38   64   56   108  21   78   65   112  1177      1720   3   156680
1003001  Tandemx       16   26   66   93   100  31   84   125  92   1485      2118   3   188320
1807001  Icesat2       43   91   53   9    0    0    98   39   44   1163      1540   2   209760
1802001  Paz           50   24   99   26   52   115  195  187  130  2093      2971   3   250840
1704205  Technosat     18   44   25   45   33   67   27   24   9    346       638    3   260160
1300901  Saral         85   123  165  65   102  63   103  156  128  1812      2802   2   456420
1601101  Sentinel3a    80   165  109  67   33   59   211  171  129  3313      4337   2   542820
1803901  Sentinel3b    51   257  119  121  146  52   168  124  129  3231      4398   2   617460
1001301  Cryosat2      72   253  192  89   99   122  194  168  238  3679      5106   2   707700
1808101  Hy2b          31   95   60   64   78   77   120  134  107  1649      2415   3   1365840
1602101  Compassi6b    0    0    2    3    0    1    5    0    5    85        101    5   1507200
8903903  Etalon2       0    12   16   22   25   26   35   19   16   465       636    2   1636800
1600201  Jason3        115  560  451  177  337  324  548  465  483  8094      11554  2   1639560
2104301  Hy2d          2    66   80   79   77   101  204  195  180  2733      3717   3   1744320
2008601  Sentinel6a    55   587  575  341  276  379  518  578  474  8549      12332  2   1780440
2006601  Hy2c          38   166  140  41   79   106  103  83   133  2824      3713   3   1928640
0304206  Larets        31   74   50   46   44   45   67   63   65   1394      1879   4   2000640
8900103  Etalon1       8    26   35   25   36   7    9    34   23   478       681    2   2018400
9207002  Lageos2       51   146  154  111  80   105  145  142  180  2519      3633   1   2093520
9306102  Stella        25   96   111  63   102  111  109  118  124  1747      2606   4   3069600
7603901  Lageos1       80   251  178  114  160  178  255  251  244  3794      5505   1   3164640
1603401  Geoik2        59   92   94   66   124  70   174  114  107  2020      2920   4   3359040
6503201  Beaconc       75   393  231  222  264  284  305  224  342  2778      5118   4   3851280
2208001  Lares2        72   152  124  110  142  76   146  158  180  2823      3983   2   4475040
1802902  Beidou3m10    0    12   4    8    0    6    15   10   7    183       245    5   4924800
1801802  Beidou3m3     0    12   13   11   3    1    2    5    9    222       278    5   5520000
1802901  Beidou3m9     0    15   11   12   0    2    14   15   11   195       275    5   6096000
1507901  Galileo209    0    15   7    4    8    22   9    3    13   258       339    5   6777600
1706902  Beidou3m2     0    9    11   14   10   0    25   14   3    253       339    5   6988800
7501001  Starlette     121  240  200  209  220  187  257  213  230  3890      5767   4   7058400
1405002  Galileo202    1    0    6    27   25   13   7    9    12   203       303    5   7142400
1603002  Galileo210    15   16   8    3    28   13   18   24   16   355       496    5   10972800
8606101  Ajisai        102  393  392  264  266  298  412  302  375  7107      9911   4   11058240
1106002  Galileo102    0    41   6    7    28   18   8    8    28   369       513    5   11568000