IAG SP3C ID Correspondence Table

The Spacecraft ID Correspondence Table for Orbit Exchange Files (SP3-c) standard establishes a universal, globally recognized numbering system for GNSS and space geodetic satellites to ensure cross-service interoperability, and to facilitate accurate processing and sharing of precise orbit and clock data.

Mission Name SP3c Code ILRS ID Satellite Catalog (NORAD Number) Altitude [km] Inclination ° Tracking Status
General Group
TOPEX/Poseidon L01 9205201 22076 1350 66 Off
GPS-MET L02 9501703 23547 740 69.9 Off
GFO-1 L03 9800701 25157 800 108 Off
Ørsted L04 9900802 25635 630 96.1 Off
SUNSAT L05 9900803 25636 400 93 Off
CHAMP L06 3902 26405 474 87 Off
SAC-C L07 7502 26620 682 98.2 Off
Jason-1 L08 105501 26997 1336 66 Off
GRACE-A L09 201201 27391 485-500 89 Off
GRACE-B L10 201202 27392 485-500 89 Off
ICESat L11 300201 27642 600 94 Off
CryoSat-2 L12 1001301 36508 720 92
TerraSAR-X L13 702601 31698 514 97.44
Metop-2 L14 604401 29499 817 98.7 Off
GOCE L15 901301 34602 250 96.5 Off
Beacon-C L16 6503201 1328 927 41
DIADEME-1C L17 6701101 2674 545 40 Off
DIADEME-1D L18 6701401 2680 585 40 Off
IRS-P5 (CARTOSAT-1) L19 501701 28649 620 97.9 Off
TanDEM-X L20 1003001 36605 514 97.44
COSMIC-1 (FM-1) L21 601101 29047 815 72 Off
COSMIC-1 (FM-2) L22 601102 29048 815 72 Off
COSMIC-1 (FM-3) L23 601103 29049 815 72 Off
COSMIC-1 (FM-4) L24 601104 29050 815 72 Off
COSMIC-1 (FM-5) L25 601105 29051 815 72 Off
COSMIC-1 (FM-6) L26 601106 29052 815 72 Off
Jason-2 L27 803201 33105 1336 66 Off
GEOS-3 L28 7502701 7734 841 115 Off
Seasat L29 7806401 10967 805 108 Off
GEOSAT L30 8502101 15595 760 x 817 108.1 Off
ERS-1 L31 9105001 21574 780 99 Off
ERS-2 L32 9502101 23560 800 99 Off
Envisat L33 200901 27386 800 98 Off
Meteor-3M L34 105601 27001 1000 99.6 Off
ANDE-RR Active L35 605506 29664 400 51.6 Off
ANDE-RR Passive L36 605510 29667 400 51.6 Off
ETS-8 L37 605901 29656 36,000 0 Off
PROBA-2 L38 905902 36037 757 98.445 Off
Jason-3 L39 1600201 41240 1336 66
Sentinel-6A/Jason-CS A L40 2008601 46984 1336 66.042
Metop-B L41 1204901 38771 817 98.7
Metop-C L42 1808701 43689 817 98.7
ANDE Castor L43 903806 35694 350 51.6 Off
ANDE Pollux L44 903805 35693 350 51.6 Off
HY-2A L45 1104301 37781 971 99.35 Off
SARAL/ALTIKA L46 1300901 39086 814 98.55
Swarm-A L47 1306702 39452 460 88.35
Swarm-B L48 1306701 39451 460 88.35
Swarm-C L49 1306703 39453 530 88.95
Ajisai L50 8606101 16908 1485 50
LAGEOS-1 L51 7603901 8820 5850 110
LAGEOS-2 L52 9207002 22195 5625 53
Etalon-1 L53 8900103 19751 19105 65
Etalon-2 L54 8903903 20026 19135 65
Starlette L55 7501001 7646 815x1100 50
Stella L56 9306102 22824 815 99
GFZ-1 L57 8601795 23558 385 52 Off
WESTPAC L58 9804301 25394 835 98 On
Larets L59 304206 27944 691 98.2
LARES L60 1200601 38077 1450 69.5
BLITS L61 904907 35871 832 98.77 Off
SpinSat L62 9806714 40314 425 51.6 Off
CASSIOPE L63 1305501 39265 Off
GRACE-FO -A L64 1804701 43476 500 89
GRACE-FO -B L65 1804702 43477 500 89
PAZ L66 1802001 43215 514 97.44
LARES-2 L67 2208001 53105 5899 70.16
HY-2B L68 1808101 43655 971 99.35
HY-2C L69 2006601 46469 957 66
Sentinel-1A L70 1401601 39634 893 98.18
Sentinel-1B L71 1602501 41456 893 98.18 Off
Sentinel-2A L72 1502801 40697 786 98.62
Sentinel-2B L73 1701301 42063 786 98.62
Sentinel-3A L74 1601101 41335 814.5 98.18
Sentinel-3B L75 1803901 43437 814.5 98.65
SWOT L76 2217301 54754 857 then 890 77.6
Sentinel-6B/Jason-CS B L77 2526401 66514 1336 66.04
HY-2D L78 2104301 48621 971 66
Sentinel-1C L79 N/A 693 98.2
Sentinel-2C L80 2415701 60989 786 98.62
CFOSAT L88 1808301 43662 524.8 97.4
Sentinel-1D L81 2525101 66315 693 98
Sentinel-3C L82
Sentinel-3D L83
HY-2E L84
HY-2F L85
Genesis L86
GRITTS L87
Atmospheric & Remote Sensing group
SPOT-2 A01-L91 (not used) 9000501 20436 786 98.7 Off
SPOT-3 A02-L92 (not used) 9306101 22823 832 98.7 Off
SPOT-4 A03-L93 9801701 25260 802 98.7 Off
SPOT-5 A04-L94 202101 27421 777 98.7 Off
COSMIC-2-1 A05 1903611 44349 559.5 24
COSMIC-2-2 A06 1903613 44351 561.6 24
COSMIC-2-3 A07 1903605 44343 558.5 24
COSMIC-2-4 A08 1903612 44350 552.1 24
COSMIC-2-5 A09 1903620 44358 731 24
COSMIC-2-6 A10 1903615 44353 730.2 24
Metop-SG A1 A11
Metop-SG B1 A12
GPS group
GPS-35 G05 9305401 22779 20195 54
GPS-36 G06 9401601 23027 20030 55
GPS-082 G20 2601701 67588 20179 55
GPS-083 G13 2608701 68791 20179 55
GLONASS group
GLONASS-87 R03 105302 26988 19140 65 Off
GLONASS-86 R06 105303 26989 19140 65 Off
GLONASS-95 R07 405302 28509 19140 65 Off
GLONASS-89 R22 206001 27617 19140 65 Off
GLONASS-99 R24 505002 28916 19140 65 Off
GLONASS-100 R23 505001 28915 19140 65
GLONASS-102 R15 606201 29670 19140 65
GLONASS-109 R11 706503 32395 19140 65
GLONASS-115 R08 806702 33467 19140 65
GALILEO group
GIOVE-A E01/E51 505101 28922 23916 56 Off
GIOVE-B E16/E52 802001 32781 23916 56 Off
Galileo-101 E11 1106001 37846 23220 56
Galileo-102 E12 1106002 37847 23220 56
Galileo-103 E19 1205501 38857 23220 56
Galileo-104 E20 1205502 38858 23220 56 Removed from Active Service
Galileo-201 E18 1405001 40128 23220 49.7 e=0.23
Galileo-202 E14 1405002 40129 23220 49.7 e=0.23
Galileo-203 E26 1501701 40544 23220 56
Galileo-204 E22 1501702 40545 23220 56 Removed from Active Service
Galileo-205 E24 1504501 40889 23220 56 Decommissioning 09-Dec-2025
Galileo-206 E30 1504502 40890 23220 56
Galileo-207 E07 1606901 41859 23220 56
Galileo-208 E08 1507902 41174 23220 56
Galileo-209 E09 1507901 41175 23220 56
Galileo-210 E01 1603002 41550 23220 56 Removed from Active Service
Galileo-211 E02 1603001 41549 23220 56
Galileo-212 E03 1606902 41860 23220 56
Galileo-213 E04 1606903 41861 23220 56
Galileo-214 E05 1606904 41862 23220 56
Galileo-215 E21/E06 1707901 43055 23220 56
Galileo-216 E25 1707902 43056 23220 56
Galileo-217 E27 1707903 43057 23220 56
Galileo-218 E31 1707904 43058 23220 56
Galileo-219 E36 1806003 43566 23220 56
Galileo-220 E13 1806004 43567 23220 56
Galileo-221 E15 1806001 43564 23220 56
Galileo-222 E33 1806002 43565 23220 56
Galileo-223 E34 2111701 49809 22239 57.2
Galileo-224 E10 2111702 49810 23238 57.2
Galileo-225 E29 2407901 59598 23232 54.9
Galileo-226 E23 2416701 61182 23245 55.3
Galileo-227 E06 2407903 59600 23239 54.9
Galileo-232 E16 2416702 61183 23237 55.3
Galileo-233 (Galileo-FOC FM33 GSAT0233) E28
Galileo-234 (Galileo-FOC FM34 GSAT0234) E32
BeiDou group
BeiDou-G1 C01 1000101 36287 42164 55.5
BeiDou-G2 N/A 901801 34779 42164 55.5
BeiDou-G3 C03 1002401 36590 42164 55.5
BeiDou-G4 C04 1005701 37210 42164 55.5
BeiDou-G5 C05 1200801 38091 42164 55.5
BeiDou-G6 C02 1205901 38953 42164 55.5
BeiDou-G7 C17 1603701 41586 42164 55.5
BeiDou-I1 C06 1003601 36828 42161 55.5
BeiDou-I2 C07 1006801 37256 42161 55.5
BeiDou-I3 C08 1101301 37384 42161 55.5
BeiDou-I4 C09 1103801 37763 42161 55.5
BeiDou-I5 C10 1107301 37948 42161 55.5
BeiDou-M3 C11 1201801 38250 21528 55
BeiDou-M4 C12 1201802 38251 21528 55
BeiDou-M5 C13 1205001 38774 21528 55
BeiDou-M6 C14 1205002 38775 21528 55
BeiDou-I6 C15 1205901 41434 42161 55.5
BeiDou-M1 C30 701101 31115 21528 55
BeiDou-I1-S C31 1501901 40549 37790 55.6
BeiDou-I2-S C32 1505301 40938 37790 55.6
BeiDou-M1-S C33 1503701 40748 21500 55
BeiDou-M2-S C34 1503702 40749 21500 55
BeiDou-M3-S C35 1600601 41315 21500 55
QZSS group
QZS-1 J01 1004501 37158 32000-40000 45 Off (replaced by QZA-1R)
QZS-2 J02 1702801 42738 32000-40000 45 On
QZS-3 J07 1704801 42917 36000 0 On
QZS-4 J03 1706201 42965 32000-40000 45 On
QZS-1R J04 2109601 49336 32000-40000 45 On
QZS-6 J08 2502301 62876 36000 0 On
IRNSS group
IRNSS-1A I01 1303401 39199 42293 29
IRNSS-1B I02 1401701 39635 42293 29
IRNSS-1C I03 1406101 40269 42293 1.9
IRNSS-1D I04 1501801 40547 42293 29
IRNSS-1E I05 1600301 41241 35786 29
IRNSS-1F I06 1601501 41384 35786 5
IRNSS-1G I07 1602701 41469 35786 5
IRNSS-1H 1705101 42928 35786 28.5 Launch failure
IRNSS-1I I09 1803501 43286 35600 29
NVS-01 I10 2307601 56759 35790 5
NVS-02 I11 2502001 62850 36577 20.8


LEGEND

Codes in italicized bold: Next available slots for assignment

SP3c Code:

  • A letter and a 2-digit number assigned by the list-keeper in consultation with the IERS Services
  • L For all non-GNSS s/c
  • A For Atmospheric & Remote Sensing s/c
  • G For GPS s/c
  • R For GLONASS s/c
  • E For Galileo s/c
  • C For BeiDou/Compass s/c
  • J For QZSS s/c
  • I For IRNSS s/c

ILRS Satellite ID†:YYXXXAA where:

  • YY:   last two digits of launch-vehicle launch year
  • XXX:launch vehicle number in year YY
  • AA:   payload sequence number for the specific launch XXX

NORAD #:The ID number assigned to each item in orbit by NORAD

NOTES:

    – The correct value for Sentinel-6A/Jason-CSA is L40; it was previously mislabeled as L76.
  • * This list contains only GNSS satellites currently (May, 2018) and historically tracked by ILRS. The SP3c codes of all GNSS satellites are identical to the codes used in the RINEX data and navigation message files. For more information on all of these s/c, please visit the IGS Antex file.
  • † COSPAR ID to ILRS Satellite Identification Algorithm
  • COSPAR ID Format: (YYYY-XXXA)
  • YYYY the four digit year of when the launch vehicle was put in orbit
  • XXX the sequential launch vehicle number for that year
  • A the alpha numeric sequence number within a launch

Example: LAGEOS-1 COSPAR ID is 1976-039A

Explanation: LAGEOS-1 launch vehicle was placed in orbit in 1976; was the 39th launch in that year; and LAGEOS-1 was the first object injected into orbit from this launch.


Requesting assignment of a code for new s/c:

New missions can obtain a code assigned to them by submitting a request via email to Claudia Carabajal (claudia.c.carabajal@nasa.gov) who is responsible for the maintenance of this list. The request will then be forwarded immediately to the Analysis coordinators of the three satellite services, IGS, ILRS, and IDS for approval. If there is no objection for a valid reason, the list-keeper assigns the code, posts the change on the web, notifies the requesting party and sends out an email to the three services' mailing lists announcing the new entry. The rules followed in assigning codes are very simple: "intelligent" satellites occupy the lowest entry numbers, cannonballs are above 50, and DORIS-only s/c in the 90s. GNSS s/c are, in all cases, handled separately and solely the responsibility of IGS.

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