82:
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1286:
1511:
1505:
660:
1677:
2047:
638:
709:
408:. It was launched in August 2008 and is expected to remain in service for approximately 15 years. It is currently located at 125° West longitude.
473:, as were integration and testing of the satellite. As prime contractor, Thales Alenia Space delivered the completed satellite to SES Americom.
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431:
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2037:
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2015:
are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
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469:
was the prime contractor for AMC-21, and provided the satellite's communications payload. The STAR-2 bus was subcontracted to
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702:
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154:
2010:
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).
1741:
517:. After successful completion of in-orbit testing, SES Americom took operational control of AMC-21 in September 2008.
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206:
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of power for the communications payload. The platform will support a 15-year on-orbit mission life. It carries 24
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661:"Another successful Arianespace launch: Superbird-7 and AMC-21 in orbit"
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639:"Orbital-Built AMC-21 Communications Satellite Successfully Launched"
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663:(Press release). Arianespace. 14 August 2008. Archived from
438:, which will be used to broadcast television signals to
493:. The satellite separated from the launch vehicle in a
679:"Orbital Reports Third Quarter 2008 Financial Results"
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513:and placed it at a longitude of 125° West of the
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681:(Press release). Orbital. 16 October 2008.
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489:launch vehicle on 14 August 2008 at 20:44
80:
17:
577:. Gunter's Space Page. 11 December 2017
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108:16 years, 23 days (elapsed)
7:
481:AMC-21 was launched, along with the
641:. Northrop Grumman. 18 August 2008
14:
509:then raised it to an operational
2048:Satellites using the GEOStar bus
627:. Orbital Sciences Corporation.
546:AMC-21 Channel List at Sathint
92:
1:
495:geosynchronous transfer orbit
412:Spacecraft and mission design
173:1,161 kg (2,560 lb)
165:2,473 kg (5,452 lb)
471:Orbital Sciences Corporation
2038:Spacecraft launched in 2008
532:with SES New Skies to form
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2008:
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521:Mergers and acquisitions
394:communications satellite
718:Satellites operated by
227:Centre Spatial Guyanais
205:14 August 2008, 20:44
667:on 18 September 2010.
551:17 March 2010 at the
416:AMC-21 is based on a
268:Reference system
121:Spacecraft properties
1303:Orbital launches in
525:In September 2009,
511:geostationary orbit
467:Thales Alenia Space
282:Geostationary orbit
150:Thales Alenia Space
20:
515:Greenwich Meridian
497:(GTO). An onboard
423:that provides 4.4
263:Orbital parameters
106:15 years (planned)
2020:
2019:
1524:CUTE-1.7 + APD II
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1186:Orbital positions
791:11 (EchoStar 105)
485:satellite, by an
392:, is an American
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363:SES constellation
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1916:Shiyan Weixing 3
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2012:
1982:Eutelsat W2M
1930:
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1789:Huan Jing 1B
1785:Huan Jing 1A
1740:
1735:
1732:Superbird-C2
1712:
1657:OSTM/Jason-2
1652:Orbcomm FM41
1648:Orbcomm FM40
1644:Orbcomm FM39
1640:Orbcomm FM38
1636:Orbcomm FM37
1632:Orbcomm FM29
1589:
1456:Soyuz TMA-12
1454:
1398:
1391:
1357:
1234:
1214:
1185:
1176:
1142:
1133:
1084:
1030:
1007:
983:
944:
921:
892:
883:
878:
834:
736:
673:
665:the original
655:
643:. Retrieved
633:
604:. Retrieved
579:. Retrieved
527:SES Americom
524:
487:Ariane 5 ECA
480:
465:
432:transponders
415:
406:SES Americom
396:operated by
389:
385:
384:
304:Transponders
217:Ariane 5 ECA
146:Manufacturer
52:SES Americom
38:Mission type
15:
2000:Kosmos 2449
1996:Kosmos 2448
1992:Kosmos 2447
1968:Kosmos 2446
1926:Kosmos 2445
1822:Kosmos 2444
1818:Kosmos 2243
1814:Kosmos 2442
1714:Trailblazer
1697:Kosmos 2441
1687:EchoStar XI
1682:ProtoStar 1
1662:Kosmos 2440
1576:Kosmos 2439
1572:Kosmos 2438
1568:Kosmos 2437
1491:Cartosat-2A
1476:Star One C2
1405:Kibō ELM-PS
1392:Jules Verne
483:Superbird-7
462:Manufacture
400:, formerly
241:Arianespace
223:Launch site
202:Launch date
162:Launch mass
59:(2009–2011)
54:(2008–2009)
29:Americom-21
2027:Categories
1987:Fengyun 2E
1978:Hot Bird 9
1886:Shijian 6F
1882:Shijian 6E
1828:Shenzhou 7
1718:NanoSail-D
1692:SAR-Lupe 5
1627:Türksat 3A
1613:ChinaSat 9
1585:Fengyun 3A
1439:SAR-Lupe 4
1434:DirecTV-11
1249:QuetzSat 1
1215:Subsidiary
559:References
505:(IHI-BT4)
291:125° West
237:Contractor
126:Spacecraft
1896:Venesat-1
1833:Banxing-1
1809:Galaxy 19
1778:September
1726:Explorers
1623:Skynet 5C
1580:Yubileiny
1563:Galaxy 18
1518:Compass-1
1472:Vinasat-1
1327:Thuraya 3
1254:Yahsat 1A
1244:MonacoSAT
1219:SES Astra
1035:Astra 1KR
452:Caribbean
425:kilowatts
347:Caribbean
320:Bandwidth
288:Longitude
76:2008-038B
70:COSPAR ID
1973:Yaogan 5
1963:Yaogan 4
1956:December
1921:Astra 1M
1905:November
1794:GeoEye-1
1530:Delfi-C3
1500:AAUSat-2
1364:Columbus
1346:February
1181:Astra 1K
1172:Sirius 3
1147:Astra 1A
1138:Astra 1P
1089:Astra 1D
625:"AMC-21"
600:"AMC-21"
575:"AMC-21"
549:Archived
398:SES S.A.
170:Dry mass
48:Operator
1932:STS-126
1891:COSMO-3
1848:October
1804:Nimiq-4
1769:Trochia
1596:Kibō PM
1591:STS-124
1536:SEEDS-2
1495:Rubin-8
1486:GIOVE-B
1429:USA-201
1419:USA-200
1400:STS-123
1359:STS-122
1320:January
1143:Retired
1085:Backups
984:Retired
893:Retired
884:Backups
645:5 April
606:5 April
581:5 April
429:Ku-band
314:Ku-band
152:(prime)
91:SATCAT
1941:PSSC-1
1839:Ratsat
1765:Choros
1753:Tachys
1736:AMC-21
1722:PRESat
1706:August
1678:Badr-6
1542:Amos-3
1512:CanX-6
1506:CanX-2
1467:C/NOFS
1462:ICO G1
1424:AMC-14
1409:Dextre
1375:Kizuna
1370:Thor 5
1332:TecSAR
1312:2009 →
1297:← 2007
1239:Ciel-2
1235:Active
1210:31.5°E
1205:28.2°E
1200:23.5°E
1195:19.2°E
1031:Active
945:Active
926:AMC-14
835:Active
737:Active
530:merged
507:engine
477:Launch
454:, and
450:, the
448:Mexico
440:Canada
434:at 36
418:STAR-2
386:AMC-21
375:AMC-23
370:AMC-18
343:Mexico
335:Canada
278:Regime
213:Rocket
140:STAR-2
19:AMC-21
1855:THEOS
1761:Choma
1618:Fermi
1448:April
1384:March
1190:5.0°E
1024:fleet
1022:Astra
1012:NSS-8
988:NSS-5
949:NSS-6
938:fleet
897:AMC-1
888:AMC-7
839:AMC-4
828:fleet
741:SES-1
730:fleet
602:. SES
503:500 N
390:GE-21
388:, or
231:ELA-3
178:Power
157:(bus)
129:GE-21
98:33275
27:GE-21
24:Names
1867:IBEX
1757:Mati
1742:Omid
1671:July
1606:June
1305:2008
647:2021
608:2021
583:2021
404:and
309:Band
181:4.4
1876:MIP
1551:May
1394:ATV
998:703
993:513
979:806
936:NSS
886::
826:AMC
728:SES
720:SES
499:IHI
491:UTC
436:MHz
325:MHz
323:36
312:24
207:UTC
135:Bus
93:no.
62:SES
2029::
1998:,
1994:,
1980:,
1939:,
1914:,
1884:,
1820:,
1816:,
1787:,
1767:,
1763:,
1759:,
1755:,
1734:,
1724:,
1720:,
1716:,
1680:,
1650:,
1646:,
1642:,
1638:,
1634:,
1625:,
1578:,
1574:,
1570:,
1533:,
1527:,
1521:,
1515:,
1509:,
1503:,
1497:,
1493:,
1474:,
1411:,
1407:,
1237::
1217::
1188::
1179::
1167:5A
1162:1E
1157:1C
1152:1B
1145::
1136::
1129:3A
1124:2D
1119:2C
1114:2B
1109:2A
1104:1H
1099:1G
1094:1F
1087::
1080:5B
1075:4A
1070:3B
1065:2G
1060:2F
1055:2E
1050:1N
1045:1M
1040:1L
1033::
1010::
986::
974:12
969:11
964:10
947::
924::
895::
879:21
874:18
869:16
864:15
859:11
854:10
837::
816:17
806:15
801:14
796:12
786:10
739::
616:^
591:^
566:^
458:.
446:,
442:,
349:,
345:,
341:,
337:,
229:,
183:kW
1943:)
1935:(
1878:)
1874:(
1835:)
1831:(
1598:)
1594:(
1415:)
1403:(
1366:)
1362:(
1288:e
1281:t
1274:v
1003:K
959:9
954:7
917:9
912:5
907:3
902:2
849:8
844:6
781:9
776:8
771:7
766:6
761:5
756:4
751:3
746:2
711:e
704:t
697:v
649:.
610:.
585:.
501:-
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