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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 20 Feb 18:54:59 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    26   0    0    0         26     3   4160 
1801410  Snet1         0    0    0    29   0    0    0    23   0    0         52     3   10880
1300301  Stsat2c       0    19   8    8    0    0    0    0    0    0         35     3   34920
1801409  Snet4         0    9    15   11   43   27   41   27   10   40        223    3   39040
1801407  Snet2         30   37   28   80   14   79   14   15   0    0         297    3   79880
1306703  Swarmc        71   94   40   76   88   121  175  50   71   104       890    2   92740
1306702  Swarma        32   137  107  113  121  104  112  64   58   48        896    2   105000
1804702  Gracefo2      65   132  127  130  168  187  110  88   37   12        1056   2   129940
1804701  Gracefo1      72   118  117  130  210  125  128  229  58   31        1218   2   137180
1003001  Tandemx       51   103  102  69   176  13   136  173  150  39        1012   3   210360
0702601  Terrasarx     76   80   69   124  132  159  96   114  121  34        1005   3   219560
1306701  Swarmb        197  382  287  303  439  402  291  513  277  117       3208   2   356860
1104301  Hy2a          0    0    0    0    25   107  56   149  83   76        496    3   383520
1601101  Sentinel3a    52   129  117  176  127  194  156  99   85   75        1210   2   404820
1807001  Icesat2       110  111  130  104  147  221  211  6    51   22        1113   2   410400
1704205  Technosat     41   44   66   80   66   112  136  32   14   37        628    3   426600
1803901  Sentinel3b    82   152  195  121  145  152  229  102  26   115       1319   2   456840
1001301  Cryosat2      117  271  208  301  265  288  179  179  124  135       2067   2   722760
1300901  Saral         123  240  307  184  286  365  239  302  132  116       2294   2   775020
1304201  Kompsat5      187  60   70   277  312  323  258  203  49   100       1839   4   818800
0803201  Jason2        64   184  202  179  285  476  807  591  377  226       3391   2   914160
1808101  Hy2b          69   111  149  50   0    70   64   59   22   35        629    3   982320
1107301  Compassi5     2    0    5    9    0    3    0    0    0    0         19     5   1324800
1200601  Lares         135  271  201  190  275  399  233  216  71   87        2078   2   1461720
1600201  Jason3        258  716  942  587  604  581  799  763  312  283       5845   2   2015400
8900103  Etalon1       15   34   31   47   53   57   49   4    7    10        307    2   2241600
9207002  Lageos2       126  253  167  188  187  255  214  157  79   97        1723   1   2440320
8903903  Etalon2       17   47   49   36   45   56   65   4    15   18        352    2   2528400
6503201  Beaconc       113  190  190  244  147  287  260  301  162  56        1950   4   2569920
0304206  Larets        38   134  110  147  148  75   88   78   63   54        935    4   2651520
7603901  Lageos1       191  190  221  248  240  359  286  210  135  97        2177   1   3000000
9306102  Stella        88   122  131  148  132  169  122  135  49   76        1172   4   3247680
1802901  Beidou3m9     5    14   1    13   10   14   12   3    0    0         72     5   4435200
1802902  Beidou3m10    5    11   17   12   15   7    10   0    0    0         77     5   5126400
1603401  Geoik2        28   278  231  199  220  247  224  305  135  74        1941   4   5151840
1606903  Galileo213    6    12   9    13   26   11   7    8    0    4         96     5   5740800
1801802  Beidou3m3     13   5    17   17   14   9    15   1    0    2         93     5   5990400
1602101  Compassi6b    17   10   13   7    13   20   7    7    0    0         94     5   6144000
7501001  Starlette     192  313  179  270  202  286  267  300  145  109       2263   4   6272640
1706902  Beidou3m2     9    22   8    17   13   14   10   0    0    0         93     5   6326400
1603001  Galileo211    0    14   23   7    17   27   10   16   6    6         126    5   6739200
1507901  Galileo209    4    17   31   3    21   11   7    6    11   9         120    5   6912000
1205501  Galileo103    12   21   7    24   22   4    16   8    2    0         116    5   7459200
1501701  Galileo203    9    4    19   17   23   24   21   12   3    4         136    5   7536000
1405002  Galileo202    0    8    19   50   5    20   21   10   14   2         149    5   8140800
1603002  Galileo210    10   6    14   18   39   13   37   26   0    8         171    5   8880000
1201801  Compassm3     7    27   22   28   17   16   38   34   0    0         189    5   10761600
8606101  Ajisai        222  493  567  505  661  324  452  345  225  163       3957   4   11409600
1106002  Galileo102    10   28   9    40   45   2    44   26   10   13        227    5   12201600
1301901  Glonass131    23   30   25   29   14   31   33   30   7    21        243    5   13430400
1603201  Glonass136    6    39   31   48   12   19   39   46   7    21        268    5   14313600
1407501  Glonass134    21   36   38   33   29   38   37   21   47   28        328    5   16953600
1705501  Glonass137    23   37   39   53   39   34   41   37   10   37        350    5   19027200