Spacecraft ID Correspondence Table for Orbit Exchange Files (SP3c)

International Association for Geodesy (IAG) Inter-Service Document

Dec 4, 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
Off
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
Off
TanDEM-X
L20
1003001
36605
514
97.44
 
COSMIC-1 (FM-1)
L21
0601101
29047
815
72.0
Off
COSMIC-1 (FM-2)
L22
0601102
29048
815
72.0
Off
COSMIC-1 (FM-3)
L23
0601103
29049
815
72.0
Off
COSMIC-1 (FM-4)
L24
0601104
29050
815
72.0
Off
COSMIC-1 (FM-5)
L25
0601105
29051
815
72.0
Off
COSMIC-1 (FM-6)
L26
0601106
29052
815
72.0
Off
Jason-2
L27
0803201 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
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
 
 
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
 
 
 
 
 
HY-2D
L78
2104301
48621
971
66
Sentinel-1C
L79
 N/A
 
693
98.2
 
Sentinel-2C
L80
 2415701
60989
786
98.62
On
 
L81-99
 
 
 
 
 
Atmospheric & 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*
GIOVE-A
E01/E51
0505101
28922
23916
56
Off
GIOVE-B
E16/E52
0802001
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
 
Galileo-201
E18
1405001
40128
23220
56
 
Galileo-202
E14
1405002
40129
23220
56
 
Galileo-203
E26
1501701
40544
23220
56
 
Galileo-204
E22
1501702
40545
23220
56
 
Galileo-205
E24
1504501
40889
23220
56
 
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
 
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
1707901
43055
23220
56
 
Galileo-216
E25
1707902
43056
23220
56
 
Galileo-217
E27
1707903
43057
23220
56
 
Galileo-218
E
1707904
43058
23220
56
 
Galileo-219
E
1806003
43566
23220
56
 
Galileo-220
E
1806004
43567
23220
56
 
Galileo-221
E
1806001
43564
23220
56
 
Galileo-222
E
1806002
43565
23220
56
 
BeiDou group
BeiDou-G1
C01
1000101
36287
42164
55.5
 
BeiDou-G2
N/A
0901801
34779
42164
55.5
 
BeiDou-G3
C03
1002401 36590
42164
55.5
 
BeiDou-G4
C04
1005701
37201
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
55.0
 
BeiDou-M4
C12
1201802
38251
21528
55.0
 
BeiDou-M5
C13
1205001
38774
21528
55.0
 
BeiDou-M6
C14
1205002 38775
21528
55.0
 
BeiDou-I6
C15
1205901
41434
42161
55.5
 
BeiDou-M1
C30
0701101
31115
21528
55.0
 
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
55.0
 
BeiDou-M2-S C34 1503702 40749
21500
55.0
 
BeiDou-M3-S C35 1600601 41315
21500
55.0
 
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

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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