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 18 Mar 21:56:34 UTC 2026
Satellite Days: 18 17 16 15 14 13 12 11 10 9 -30 TotalNP p Score
1306703 Swarmc 0 0 15 19 47 58 29 44 86 46 1062 344 2 26882
1306702 Swarma 4 9 19 39 46 116 17 49 88 33 1035 420 2 37555
1807001 Icesat2 30 66 63 109 55 130 81 77 35 35 1758 681 2 77778
1804702 Gracefo2 145 104 72 83 0 110 113 79 112 112 1195 930 2 103555
1804701 Gracefo1 210 155 34 84 0 196 138 67 116 150 1899 1150 2 131299
1306701 Swarmb 165 125 94 59 75 261 143 138 153 183 2044 1396 2 145444
0702601 Terrasarx 63 96 95 107 47 90 114 75 120 83 1589 890 3 191149
1003001 Tandemx 44 184 93 82 60 112 136 76 104 128 2137 1019 3 219817
1802001 Paz 188 111 57 72 46 169 197 193 216 204 3197 1453 3 281717
1601101 Sentinel3a 110 85 79 48 95 172 182 186 140 104 2438 1201 2 358418
1803901 Sentinel3b 118 120 33 72 73 159 228 175 184 114 2373 1276 2 373173
1001301 Cryosat2 75 154 154 122 42 165 191 198 205 181 3256 1487 2 438136
1300901 Saral 111 180 119 119 114 88 173 208 187 211 3159 1510 2 455559
9804305 Westpac 83 47 52 40 12 39 46 35 17 37 842 408 4 619082
2217301 Swot 144 272 108 130 178 309 305 244 300 290 3265 2280 2 670285
2526401 Sentinel6b 219 214 124 132 210 279 298 352 315 272 4537 2415 2 714757
2008601 Sentinel6a 304 385 213 122 176 492 494 331 570 406 7126 3493 2 1032766
8900103 Etalon1 10 31 9 9 3 26 27 5 40 7 374 167 2 1046774
1600201 Jason3 202 399 312 201 275 587 747 537 633 327 7897 4220 2 1225357
8903903 Etalon2 22 23 23 16 28 36 15 7 17 3 347 190 2 1427147
1200601 Lares 198 206 178 198 149 260 306 345 275 267 3946 2382 2 1433626
1808101 Hy2b 115 156 100 72 47 132 163 127 126 159 2059 1197 3 1500619
1602101 Compassi6b 6 3 1 5 3 0 0 3 0 7 43 28 5 1574443
0304206 Larets 82 53 85 72 29 74 80 67 70 66 1155 678 4 1802115
2104301 Hy2d 195 146 87 66 112 273 156 205 159 137 2125 1536 3 1958845
9207002 Lageos2 164 238 108 120 91 138 164 209 241 130 2932 1603 1 2071012
2006601 Hy2c 247 194 131 164 146 197 210 270 200 220 3100 1979 3 2533420
1405002 Galileo202 0 10 7 7 2 9 3 4 0 0 186 42 5 2649786
1603002 Galileo210 16 4 0 7 2 0 2 4 0 5 71 40 5 2707271
1802902 Beidou3m10 1 6 0 4 9 14 6 13 4 0 146 57 5 2755346
7603901 Lageos1 181 284 192 157 137 239 293 248 344 166 3567 2241 1 2832687
1802901 Beidou3m9 8 4 3 3 4 5 9 15 10 1 120 62 5 2995320
9306102 Stella 120 127 109 76 90 181 114 141 244 153 2671 1355 4 3224431
1706902 Beidou3m2 0 5 6 5 11 19 5 12 0 0 162 63 5 3312162
1801802 Beidou3m3 12 9 0 4 11 3 5 4 22 4 153 74 5 3744153
6503201 Beaconc 233 401 188 331 217 309 442 529 333 327 3388 3310 4 4072588
2208001 Lares2 169 204 98 124 139 145 212 196 194 92 2668 1573 2 4156108
7501001 Starlette 188 250 179 149 126 291 279 320 272 305 3130 2359 4 5638810
2601701 Gps082 11 7 17 10 17 15 20 6 6 0 2 109 5 6393602
1106002 Galileo102 22 13 4 10 13 8 7 15 23 14 219 129 5 6624219
1507901 Galileo209 41 11 0 7 6 0 8 11 17 0 164 101 5 6652964
8606101 Ajisai 338 408 351 295 213 549 520 574 503 422 5815 4173 4 10171255
