JCSAT-4A

JCSAT-4A
NamesJCSAT-6 (order to Feb 1999)
JCSAT-4A (Feb 1999 onward)
Mission typeCommunications
OperatorSKY Perfect JSAT Group
COSPAR ID1999-006A Edit this at Wikidata
SATCAT no.25630
Mission duration14.5 years (planned)
25 years, 3 months and 7 days (elasped)
Spacecraft properties
SpacecraftJCSAT-6
Spacecraft typeJCSAT
BusHS-601
ManufacturerHughes
Launch mass2,900 kilograms (6,400 lb)
Start of mission
Launch date16 February 1999, 01:45:26 UTC
RocketAtlas IIAS (AC-152)
Launch siteCape Canaveral, LC-36A
ContractorInternational Launch Services (ILS)
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
Longitude124° East
Transponders
Band32 Ku band
Coverage areaJapan
JCSAT constellation
← JCSAT-1B
JCSAT-110 →
 

JCSAT-4A, designated JCSAT-6 before launch, is a Japanese geostationary communications satellite which is operated by JSAT Corporation (now SKY Perfect JSAT Group). It is positioned in geostationary orbit at a longitude of 124° East, from where it is used to provide broadcasting and corporate network communications to Japan.[1]

Spacecraft description

JCSAT-6 was constructed by Hughes, based on the HS-601 satellite bus. It is equipped with 32 Ku-band transponders, and at launch it had a mass of 2,900 kg (6,400 lb), with an expected operational lifespan of fourteen and a half years.[2][3]

Launch

It was launched atop an Atlas IIAS launch vehicle flying from Launch Complex 36A at the Cape Canaveral Air Force Station. The launch occurred at 01:45:26 UTC on 16 February 1999,[4] and successfully placed JCSAT-6 into a geostationary transfer orbit. From this orbit, the satellite raised itself into a geostationary orbit using an R-4D apogee motor.[5] The final burn to complete its insertion into geosynchronous orbit occurred on 1 March 1999.[6]

See also

  • Spaceflight portal

References

  1. ^ "JCSAT-4A". Sky Perfect JSAT. Archived from the original on 13 July 2009. Retrieved 8 August 2009.
  2. ^ "UCS Satellite Database". Union of Concerned Scientists. 1 July 2009. Retrieved 8 August 2009.
  3. ^ Krebs, Gunter. "JCSat 5, 6". Gunter's Space Page. Retrieved 8 August 2009.
  4. ^ McDowell, Jonathan (14 March 2021). "Launch Log". Jonathan's Space Report. Retrieved 20 March 2021.
  5. ^ Wade, Mark. "JCSAT". Encyclopedia Astronautica. Archived from the original on 29 August 2002. Retrieved 8 August 2009.
  6. ^ McDowell, Jonathan. "Index". Geostationary Orbit Catalog. Jonathan's Space Report. Archived from the original on 6 April 2010. Retrieved 8 August 2009.
  • v
  • t
  • e
Orbital launches in 1999
JanuaryFebruary
March
April
MayJune
  • Globalstar 25, Globalstar 47, Globalstar 49, Globalstar 52
  • Iridium 14A, Iridium 21A
  • Astra 1H
  • QuikSCAT
  • FUSE
July
  • Gran' No.45
  • Molniya 3-50
  • Globalstar 30, Globalstar 32, Globalstar 35, Globalstar 51
  • Progress M-42
  • Okean-O No.1
  • STS-93 (Chandra)
  • Globalstar 26, Globalstar 28, Globalstar 43, Globalstar 48
August
  • Telkom 1, Globalstar 24, Globalstar 27, Globalstar 53, Globalstar 54
  • Kosmos 2365
  • Kosmos 2366
September
October
November
December
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).
Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
  • v
  • t
  • e
JCSAT satellites
Launch designations
Operational designations


Stub icon

This article about one or more communications satellites is a stub. You can help Wikipedia by expanding it.

  • v
  • t
  • e
Stub icon

This article about one or more spacecraft of Japan is a stub. You can help Wikipedia by expanding it.

  • v
  • t
  • e