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ILRS Mission Priorities as of January 4, 2023

Priority Mission ILRS
Name		 COSPAR
ID		 SIC Sponsor Altitude
(km)		 Inclination
(degrees)		 Comments
1 GRACE-FO-1/2 gracefo1
gracefo2		 1804701
1804702		 0123
0124		 NASA JPL and the German Research Centre for Geosciences (GFZ) 500 89 1-month campaign
2 ICESat-2 icesat2 1807001 6873 NASA 496 92 Restricted tracking; authorization required
3 CryoSat-2 cryosat2 1001301 8006 ESA 450-720 92  
4 PAZ paz 1802001 2501 HISDESAT 514 97.44  
5 TanDEM-X tandemx 1003001 6202 Infoterra/ DLR/GFZ/CSR 514 98 Tandem with TerraSAR-X
6 TerraSAR-X terrasarx 0702601 6201 Infoterra/ DLR/GFZ/CSR 514 97.44 Tandem with TanDEM-X
7 Sentinel-3B sentinel3b 1803901 8011 ESA/EUMETSAT 814.5 98.65

Restricted tracking; authorization required
8 Sentinel-3A sentinel3a 1601101 8010 ESA/EUMETSAT 814.5 98.65

Restricted tracking; authorization required
9 SWOT swot 2217301 4381 NASA/CNES 857 then 890 77.6  
10 Swarm-A/C swarma
swarmc		 1306702
1306703		 8007
8009		 ESA 460
530		 88.35
88.95		  
11 Swarm-B swarmb 1306701 8008 ESA 460 88.35  
12 KOMPSAT-5 kompsat5 1304201 3803 KARI 550 96.7  
13 SARAL saral 1300901 3201 CNES and ISRO 814 98.55  
14 HY-2D hy2d 2104301 2211 China 971 66  
15 HY-2C hy2c 2006601 2209 China 957 66  
16 HY-2B hy2b 1808101 2208 China 971 98.55  
17 Sentinel-6A/Jason-CSA sentinel6a 2008601 4380 NASA, ESA, EUMETSAT, NOAA, CNES 1339.4-1355.9 66.042  
18 Jason-3 jason3 1600201 4379 NASA, CNES, Eumetsat, NOAA 1,336 66.0  
19 Geo-IK-2 geoik2 1603401 5561 JSC ISS 943.5 - 973.5 99.47  
20 LARES-2 lares2 2208001 5988 ASI 5,899 70.16  
21 ELSA-d elsdtgt 2102239 4203 Astroscale 500-600 97.6  
22 ELSA-d elsdchs 2102213 4204 Astroscale 500-600 97.6  
23 TechnoSat technosat 1704205 6203 Technische Universität Berlin 600 97.6 - 97.9 degrees ±7.2 arcmin 3-month campaign
24 Larets larets 0304206 5557 IPIE 691 98.204  
25 Starlette starlette 7501001 1134 CNES 815-1,100 49.8  
26 Stella stella 9306102 0643 CNES 815 98.6  
27 LARES lares 1200601 5987 ASI 1,450 69.5  
28 LAGEOS-2 lageos2 9207002 5986 ASI/NASA 5,625 52.6  
29 LAGEOS-1 lageos1 7603901 1155 NASA 5,850 109.8  
30 Etalon-1 etalon1 8900103 0525 Russia 19,100 65.3  
31 Etalon-2 etalon2 8903903 4146 Russia 19,100 65.2  
32 Ajisai ajisai 8606101 1500 JAXA 1,485 50  
33 GLONASS-141 glonass141 1908801 9141 Russia 19,140 65  
34 Galileo-102 galileo102 1106002 7102 ESA 23,220 56  
35 BeiDou-3M2 beidou3m2 1706902 2014 China Satellite Navigation Engineering Center 21,500 55  
36 GLONASS-143 glonass143 2007501 9143 Russia 19,140 65  
37 Galileo-202 galileo202 1405002 7202 ESA 23,220 56  
38 BeiDou-3M3 beidou3m3 1801802 2015 China Satellite Navigation Engineering Center 21,500 55  
39 GLONASS-140 glonass140 1903001 9140 Russia 19,140 65  
40 Galileo-209 galileo209 1507901 7209 ESA 23,220 56  
41 BeiDou-3M9 beidou3m9 1802901 2019 China Satellite Navigation Engineering Center 21,500 55  
42 GLONASS-133 glonass133 1403201 9133 Russia 19,140 65  
43 Galileo-210 galileo210 1603002 7210 ESA 23,220 56  
44 BeiDou-3M10 beidou3m10 1802902 2020 China Satellite Navigation Engineering Center 21,500 55  
45 IRNSS-1B irnss1b 1401701 3302 ISRO 42,293 31  
46 QZS-3 qzs3 1704801 1583 Cabinet Office, Government of Japan 36,000 0  
47 QZS-2 qzs2 1702801 1582 Cabinet Office, Government of Japan 32,000-40,000 km 45  
48 QZS-4 qzs4 1706201 1584 Cabinet Office, Government of Japan 32,000-40,000 km 45  
49 IRNSS-1I irnss1i 1803501 3309 ISRO 35,786 29  
50 IRNSS-1F irnss1f 1601501 3306 ISRO 35,786 29  
51 IRNSS-1E irnss1e 1600301 3305 ISRO 35,786 29  
52 IRNSS-1D irnss1d 1501801 3304 ISRO 42,293 30.5  
53 IRNSS-1C irnss1c 1406101 3303 ISRO 42,293 5  
54 QZS-1R qzs1r 2109601 1585 Cabinet Office, Government of Japan 32,000-40,000 45  
55 QZS-1 qzs1 1004501 1581 Cabinet Office, Government of Japan 32,000-40,000 45  
56 Beacon-C beaconc 6503201 0317 NASA 950-1300 41  

Lunar Tracking Priorities

Priority Retroreflector Array ILRS
Name		 COSPAR
ID		 SIC Sponsor Altitude(km)
1 Apollo15 apollo15 0000103 N/A NASA 356,400
2 Apollo11 apollo11 0000100 N/A NASA 356,400
3 Apollo14 apollo14 0000102 N/A NASA 356,400
4 Luna21 luna21 0000101 N/A Russian Federation 356,400
5 Luna17 luna17 0000104 N/A Russian Federation 356,400