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: Sat 4 Oct 02:58:16 UTC 2025
Satellite Days: 4 3 2 1 30 29 28 27 26 25 -30 TotalNP p Score
1602101 Compassi6b 0 0 0 0 0 0 0 0 0 0 11 0 5 11
1306703 Swarmc 0 50 34 10 0 4 9 34 23 0 647 164 2 20567
1306702 Swarma 0 51 83 11 15 20 5 61 31 4 747 281 2 33927
1306701 Swarmb 0 176 118 40 106 33 20 57 28 61 1739 639 2 81279
1804702 Gracefo2 0 94 195 88 70 51 29 9 73 94 1265 703 2 82865
1807001 Icesat2 0 98 281 117 39 12 16 49 66 3 844 681 2 92624
1804701 Gracefo1 0 163 165 189 105 53 8 5 42 121 1512 851 2 106652
1003001 Tandemx 0 74 134 112 163 88 3 112 59 119 1630 864 3 182630
0702601 Terrasarx 0 56 213 116 161 110 16 84 89 98 1270 943 3 206390
1601101 Sentinel3a 0 91 203 156 68 61 74 127 72 36 1797 888 2 308097
1802001 Paz 0 154 278 171 190 223 170 70 171 149 2307 1576 3 340027
1001301 Cryosat2 0 205 162 116 98 102 99 77 80 86 1980 1025 2 357420
1803901 Sentinel3b 0 64 230 130 191 137 61 128 101 33 1699 1075 2 362899
1300901 Saral 0 116 181 97 140 193 129 162 105 125 2247 1248 2 381027
2217301 Swot 0 220 203 125 206 174 124 115 132 78 2391 1377 2 468471
9804305 Westpac 0 59 79 24 56 59 51 17 6 23 503 374 4 540983
8903903 Etalon2 0 11 5 25 22 35 13 19 15 8 405 153 2 922005
6503201 Beaconc 0 85 185 79 33 41 50 58 130 67 3350 728 4 939830
8900103 Etalon1 0 11 13 11 38 48 11 6 10 7 337 155 2 1004737
1200601 Lares 0 201 238 177 184 252 91 107 169 114 2449 1533 2 1016809
1802902 Beidou3m10 0 0 5 1 5 3 4 1 2 13 99 34 5 1228899
9207002 Lageos2 0 78 141 146 138 151 72 124 122 117 2513 1089 1 1311953
1600201 Jason3 0 475 553 578 559 479 499 516 458 292 5858 4409 2 1400618
1808101 Hy2b 0 77 174 206 139 147 55 93 89 91 1822 1071 3 1409182
1802901 Beidou3m9 0 2 3 0 7 7 4 2 1 4 117 30 5 1411317
2008601 Sentinel6a 0 459 650 638 695 593 261 460 385 282 6698 4423 2 1471178
0304206 Larets 4 83 89 72 67 67 71 36 35 52 881 576 4 1562801
1801802 Beidou3m3 0 4 0 5 5 2 8 8 3 5 120 40 5 1708920
2006601 Hy2c 0 97 259 174 182 216 125 220 152 134 2741 1559 3 1906661
7603901 Lageos1 0 159 247 264 262 222 153 200 128 113 3941 1748 1 2288261
2104301 Hy2d 0 204 291 195 209 238 195 163 107 113 3583 1715 3 2300143
9306102 Stella 0 69 165 144 159 180 85 140 123 96 2378 1161 4 2836778
2208001 Lares2 0 116 175 122 201 123 133 128 86 109 2570 1193 2 3034250
1706902 Beidou3m2 0 7 9 10 6 11 15 13 0 3 126 74 5 3820926
7501001 Starlette 0 171 209 241 185 162 77 209 154 151 3444 1559 4 3945204
1603002 Galileo210 0 4 21 0 14 13 12 14 1 5 222 84 5 4320222
1507901 Galileo209 0 7 10 16 15 22 4 18 5 13 236 110 5 5261036
1106002 Galileo102 0 4 20 18 16 15 14 18 6 7 233 118 5 5971433
1405002 Galileo202 0 41 10 11 10 27 19 19 38 9 324 184 5 9014724
8606101 Ajisai 10 371 438 546 480 499 418 403 361 260 7153 3786 4 9608593
