Spacecraft ID Correspondence Table for Orbit Exchange Files (SP3c)

This International Association for Geodesy (IAG) Inter-Service Document was updated on Jun 18, 2024.

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	0003902	26405	474	87	Off
SAC-C	L07	0007502	26620	682	98.2	Off
Jason-1	L08	0105501	26997	1336	66	Off
GRACE-A	L09	0201201	27391	485-500	89	Off
GRACE-B	L10	0201202	27392	485-500	89	Off
ICESat	L11	0300201	27642	600	94	Off
CryoSat-2	L12	1001301	36508	720	92
TerraSAR-X	L13	0702601	31698	514	97.44
Metop-2	L14	0604401	29499	817	98.7
GOCE	L15	0901301	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	0501701	28649	620	97.9
TanDEM-X	L20	1003001	36605	514	97.44
COSMIC-1 (FM-1)	L21	0601101	29047	815	72.0
COSMIC-1 (FM-2)	L22	0601102	29048	815	72.0
COSMIC-1 (FM-3)	L23	0601103	29049	815	72.0
COSMIC-1 (FM-4)	L24	0601104	29050	815	72.0
COSMIC-1 (FM-5)	L25	0601105	29051	815	72.0
COSMIC-1 (FM-6)	L26	0601106	29052	815	72.0
Jason-2	L27	0803201	33105	1336	66
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	0200901	27386	800	98	Off
Meteor-3M	L34	0105601	27001	1000	99.6	Off
ANDE-RR Active	L35	0605506	29664	400	51.6	Off
ANDE-RR Passive	L36	0605510	29667	400	51.6	Off
ETS-8	L37	0605901	29656	36,000	0	Off
PROBA-2	L38	0905902	36037	757	98.445	Off
Jason-3	L39	1600201	41240	1336	66
Sentinel-6A/ Jason-CS A	L40	2008601	46984	1339.4-1355.9	66.042
Metop-B	L41	1204901	38771	817	98.7
Metop-C	L42	1808701	43689	817	98.7
ANDE Castor	L43	0903806	35694	350	51.6	Off
ANDE Pollux	L44	0903805	35693	350	51.6	Off
HY-2A	L45	1104301	37781	971	99.35
SARAL	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	Off
Larets	L59	0304206	27944	691	98.2
LARES	L60	1200601	38077	1450	69.5
BLITS	L61	0904907	35871	832	98.77	Off
SpinSat	L62	9806714	40314	425	51.6	Off
CASSIOPE	L63	1305501	39265
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
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
HY-2D	L78	2104301	48621	971	66
	L79-99
Atmospheric and Remote Sensing group
SPOT-2	A01	9000501	20436	786	98.7	Off
SPOT-3	A02	9306101	22823	832	98.7	Off
SPOT-4	A03	9801701	25260	802	98.7	Off
SPOT-5	A04	0202101	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	731.0	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
GLONASS group*
GLONASS-87	R03	0105302	26988	19140	65	Off
GLONASS-86	R06	0105303	26989	19140	65	Off
GLONASS-95	R07	0405302	28509	19140	65	Off
GLONASS-89	R22	0206001	27617	19140	65	Off
GLONASS-99	R24	0505002	28916	19140	65	Off
GLONASS-100	R23	0505001	28915	19140	65
GLONASS-102	R15	0606201	29670	19140	65
GLONASS-109	R11	0706503	32395	19140	65
GLONASS-115	R08	0806702	33467	19140	65
GALILEO group*
BeiDou group
QZSS group
QZS-1	J01	1004501	37158	32000-40000	45
QZS-2	J02	1702801	42738	32000-40000	45
QZS-3	J03	1704801	42917	36,000	0
QZS-4	J04	1706201	42965	32000-40000	45
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	I08	1705101	42928	35786	28.5
IRNSS-1I	I09	1803501	43286	35600	29
IRNSS-1J	I10	2307601	56759	35790	5

Legend

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.

Spacecraft ID Correspondence Table for Orbit Exchange Files (SP3c)

Legend

Notes

Requesting Assignment of a Code for New s/c

Related Links

Find Data

By Platform

By Topic

Data Catalog

Data Tools