To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

From Wikipedia, the free encyclopedia

N-STAR a
Mission typeCommunication
OperatorSKY Perfect JSAT Group
COSPAR ID1995-044A[1]
SATCAT no.23651
Spacecraft properties
SpacecraftN-STAR a
BusSSL 1300
ManufacturerSpace Systems/Loral
Launch mass3,400 kg (7,500 lb)[2]
BOL mass2,050 kg (4,520 lb)
Dry mass1,617 kg (3,565 lb)
Start of mission
Launch date06:41:00, August 29, 1995 (UTC) (1995-08-29T06:41:00Z)[3]
RocketAriane 44P
Launch siteKourou ELA-2
ContractorArianespace
Orbital parameters
Reference systemGeocentric
RegimeInclined geosynchronous
Semi-major axis42,458 km
Perigee altitude36,064 km
Apogee altitude36,156 km
Inclination8.86°
Period1452.66 minutes
Epoch2016-08-21 00:00:00 UTC[4]
Transponders
BandC band: 6
Ka band: 11
Ku band: 8
S band: 1[5]
 

N-STAR a, was a geostationary communications satellite originally ordered by a consortium including NTT DoCoMo and JSAT Corporation, and later fully acquired by JSAT, which was merged into SKY Perfect JSAT Group. It was designed and manufactured by Space Systems/Loral on the SSL 1300 platform.[2] It had a launch weight of approximately 3,400 kg (7,500 lb), and a 10-year design life.[2] Its payload is composed of 6 C band, 11 Ka band, 8 Ku band and 1 S band transponders.

History

N-Star was created as a joint venture between JSAT, NTT, NTT Communications and NTT DoCoMo for the supply of these latter two WIDESTAR satellite telephone and data packet service.[6] JSAT would handle the satellite side of business and NTT DoCoMo would operate the payload.[7][8]

Two identical satellites were ordered on 1992 from Space Systems Loral, N-STAR a and N-STAR b, for 1995 and 1996 on orbit delivery.[9][10] They would be "switchboards in the sky" having S band, C band, Ka band and Ku band payload.[11]

N-STAR a was successfully launched aboard an Ariane 44P on August 29, 1995. Its twin, N-STAR b, launched on February 5, 1996, also aboard an Ariane 44P.[2][11] The satellite telephone service was operational in March 1996. On March 2000, the packet communications service was introduced.[12] On March 2000, JSAT received the NTT Communications interest in the N-STAR a and N-STAR b.[13][14]

On August 2003 the JSAT acquired the NTT DoCoMo interest on N-STAR a and N-STAR b, whom then leased them back.[15][16]

See also

  • JCSAT-5A – Also known as N-STAR d, was the follow on satellite.

References

  1. ^ "N-STAR-A". NASA Space Science Data Coordinated Archive. 27 April 2016. Retrieved 2016-08-19.
  2. ^ a b c d Krebs, Gunter Dirk (2016-08-19). "N-Star a, b". Gunter's Space Page. Retrieved 20 July 2016.
  3. ^ "N-STAR-A". NASA Space Science Data Coordinated Archive. 27 April 2016. Retrieved 2016-08-19.
  4. ^ "NSTAR A". n2yo.com. Retrieved 2016-08-19.
  5. ^ "Communications in Japan 1999" (PDF). General Planning and Policy Division, Minister’s Secretariat (Whitepaper). Communications in Japan (1999 ed.). Ministry of Posts and Telecommunications of Japan. 1999: 132. Retrieved 2016-08-20. Cite journal requires |journal= (help)
  6. ^ "FORM 20-F/A AMENDMENT NO.1 TO FORM 20-F" (PDF). NTT DoCoMo. February 8, 2002. Retrieved 2016-08-02.
  7. ^ "FORM 20-F/A AMENDMENT NO.1 TO FORM 20-F" (PDF). NTT DoCoMo. July 10, 2002. Retrieved 2016-08-02.
  8. ^ "FORM 20-F/A AMENDMENT NO.1 TO FORM 20-F" (PDF). NTT DoCoMo. July 3, 2003. Retrieved 2016-08-02.
  9. ^ "N-Star". Global Security. Retrieved 2016-08-02.
  10. ^ "Awards & Launch History - 1300 Bus Satellites". SSL. Archived from the original on 2015-08-12. Retrieved 2016-08-20.
  11. ^ a b "N-Star a and b". SSL. Retrieved 2016-08-18.
  12. ^ Yamamoto, Kazuichi; Furukawa, Makoto; Satoh, Hijin; Nishi, Yasuki; Kouji, Horikawa (September 2010). "Overview of WIDESTAR II Mobile Satellite Communications System and Service" (PDF). NTT DoCoMo Technical Journal. NTT DoCoMo. 12 (2): 37–42. Retrieved 2 August 2016.
  13. ^ "Who we are" (PDF). SKY Perfect JSAT Group. 2012-08-03. Retrieved 2016-08-02.
  14. ^ "History". SKY Perfect JSAT Holdings Inc. Retrieved 2016-07-28.
  15. ^ "NTT DoCoMo to Transfer Satellite Assets to JSAT and Acquire JSAT Common Stock". NTT DoCoMo. July 31, 2003. Retrieved 2016-08-02.
  16. ^ "FORM 20-F/A AMENDMENT NO.1 TO FORM 20-F" (PDF). NTT DoCoMo. June 28, 2004. Retrieved 2016-08-02.

External links

This page was last edited on 25 January 2021, at 20:32
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.