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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:  Wed 7 Dec 05:51:45 UTC 2022

   Satellite     Days: 7    6    5    4    3    2    1    30   29   28       TotalNP  p   Score

2102239  Elsadtgt      0    0    0    0    0    0    0    0    0    0         0      3   0    
1304201  Kompsat5      0    0    0    0    0    0    0    0    0    16        16     4   1280 
2102213  Elsadchs      0    0    0    0    0    47   27   0    0    16        90     3   14360
1306703  Swarmc        0    73   87   59   106  92   160  41   6    47        671    2   73680
1306702  Swarma        0    84   153  97   57   67   153  72   0    44        727    2   84160
1704205  Technosat     0    22   16   26   20   5    11   12   18   7         137    3   93120
1804702  Gracefo2      31   111  83   89   85   159  124  107  124  91        1004   2   101140
1804701  Gracefo1      29   102  113  91   116  148  158  93   94   160       1104   2   108880
1306701  Swarmb        0    155  234  124  94   260  217  66   60   144       1354   2   146580
1003001  Tandemx       0    108  138  51   96   123  190  78   67   72        923    3   192960
0702601  Terrasarx     0    126  167  77   82   103  246  78   54   137       1070   3   219160
1802001  Paz           0    59   200  236  79   98   235  111  69   62        1149   3   248800
1807001  Icesat2       0    106  187  15   49   67   182  46   48   73        773    2   253140
1601101  Sentinel3a    4    130  107  84   129  161  103  94   81   110       1003   2   311940
1803901  Sentinel3b    0    109  144  119  145  94   137  74   77   156       1055   2   323160
1300901  Saral         14   125  154  135  79   164  185  93   59   68        1076   2   356460
1001301  Cryosat2      7    143  192  82   75   203  178  60   41   68        1049   2   358440
1808101  Hy2b          0    84   86   92   42   55   94   57   33   83        626    3   794640
8900103  Etalon1       3    10   0    31   24   17   24   12   2    7         130    2   850800
1600201  Jason3        0    418  356  345  318  246  391  238  259  186       2757   2   908700
8903903  Etalon2       0    24   25   16   6    9    22   10   15   13        140    2   924000
2006601  Hy2c          0    105  116  79   74   59   60   113  81   84        771    3   957600
6503201  Beaconc       0    117  121  58   39   68   316  136  93   18        966    4   1170480
2008601  Sentinel6a    0    536  551  584  334  394  620  306  359  338       4022   2   1304880
2104301  Hy2d          0    179  132  128  89   88   154  112  72   98        1052   3   1375440
9207002  Lageos2       25   157  163  104  113  114  155  120  128  123       1202   1   1512480
0304206  Larets        0    89   89   63   55   64   87   77   37   58        619    4   1591200
7603901  Lageos1       5    251  178  113  92   131  232  173  102  110       1387   1   1798080
1603401  Geoik2        0    90   120  81   84   90   112  51   28   42        698    4   1915200
9306102  Stella        11   97   101  78   91   92   110  87   80   31        778    4   2032800
2208001  Lares2        0    158  124  73   63   90   79   88   71   138       884    2   2214240
1802901  Beidou3m9     0    2    4    6    7    9    12   2    0    6         48     5   2294400
1602101  Compassi6b    0    3    10   6    6    3    6    5    5    11        55     5   2496000
1405002  Galileo202    3    12   4    4    4    2    14   11   8    8         70     5   3312000
1801802  Beidou3m3     0    8    0    9    2    7    26   14   7    3         76     5   3312000
1603002  Galileo210    0    13   3    0    24   7    0    4    11   4         66     5   3436800
1802902  Beidou3m10    0    7    14   10   7    9    5    2    11   2         67     5   3667200
7501001  Starlette     0    225  205  209  77   116  258  138  83   158       1469   4   3811200
1706902  Beidou3m2     0    14   14   18   6    2    0    2    0    7         63     5   4060800
8606101  Ajisai        16   344  321  271  172  228  395  203  148  205       2303   4   6039840
1507901  Galileo209    0    29   31   2    2    14   4    2    5    26        115    5   6364800
1106002  Galileo102    5    39   14   14   5    12   10   14   9    29        151    5   7968000