Superbird-B3

Last updated

Superbird-B3
NamesSuperbird-8
DSN-1
Kirameki-1
Mission type Communications
Operator SKY Perfect JSAT Group
COSPAR ID 2018-033A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 43271 [1]
Mission duration15 years (planned)
Spacecraft properties
SpacecraftSuperbird-8
Spacecraft type Superbird
Bus DS2000
Manufacturer Mitsubishi Electric
Launch mass5,348 kg (11,790 lb)
Start of mission
Launch date5 April 2018, 21:34:07 UTC [2]
Rocket Ariane 5 ECA (VA242)
Launch site Centre Spatial Guyanais, ELA-3
Contractor Arianespace
Orbital parameters
Reference system Geocentric orbit
Regime Geostationary orbit
Longitude162° East
Transponders
Band Ku-band, Ka-band and X-band
Coverage areaJapan
 

Superbird-B3, known as Superbird-8 before launch, and DSN-1 (Kirameki-1) for its military payload, is a geostationary communications satellite operated by SKY Perfect JSAT Group and designed and manufactured by Mitsubishi Electric on the DS2000 satellite bus.

Contents

It is intended to replace Superbird-B2 on the 162° East, offering Ku-band and Ka-band communication services to the Japanese market. It will also serve as one of the two planned X-band military satellites of the DSN network, in this role, it will be known as DSN-1 (Kirameki-1).

Originally intended to be launched by an Ariane 5 ECA in the second half of fiscal year 2015, a mishap during transport to the launch site in March 2016 meant that it would be delayed up to two years.

History

JSAT along NEC, NTT Com and Maeda Corporation formed a joint venture called DSN Corporation. On 15 January 2013, DSN Corporation announced that it had closed a contract with the Ministry of Defense to execute the "Program to Upgrade and Operate X-Band Satellite Communications Functions, etc". The contract is a private finance initiative, where private funds, management and technical capabilities are used to upgrade and operate the Japanese military X-band satellite network. [3] Based on this program, DSN Corporation will manufacture and launch two satellites plus perform the necessary upgrades to ground control stations. It will also operate, manage and maintain the facilities and equipment through fiscal years 2015 to 2030. The total program cost was estimated at ¥122,074,026,613. [3]

The plan called for the launch of the first satellite in December 2015, with a start of operations in March 2016 and a termination of operations in April 2030. The second satellite was expected to launch in January 2017, starting operations in March 2017. The program and the operations of the second satellite were expected by March 2031. [3] JSAT role is the procurement and general management of the satellites. [3] The first satellite, DSN-1, is actually an additional payload on one of JSAT's own satellites, Superbird-8. [4] The second satellite, DSN-2 is a dedicated spacecraft. [4] [5]

On 25 April 2014, JSAT announced that it had placed an order with Mitsubishi Electric (MELCO) and its satellite platform DS2000 for its Superbird-8 satellite. It would replace Superbird-B2 and be positioned on the 162° East orbital slot. [6] On an earning revision, JSAT disclosed that they had confirmed container deformation after Superbird-8 arrived to its launch site. [7] In July 2016, it was published that a 25 May 2016 mishap during air transport had delayed the satellite launch by an estimated two years. A dislodged tarpaulin had blocked the bleed valve on the satellite container and the spacecraft had suffer from over pressurization damage. [2]

See also

Related Research Articles

JSAT Corporation (JSAT) was the first private Japanese satellite operator, which owned the JSAT satellites, as well as operated and partially owned the N-Star with NTT DoCoMo. Its origins can be traced to the funding of Japan Communications Satellite Company (JCSAT) and Satellite Japan Corporation in 1985. Both companies merged into Japan Satellite Systems Inc. in 1993. In 2000 the company was renamed as JSAT Corporation and was listed in the First Section of the Tokyo Stock Exchange. On September 1, 2008, the company was merged into the SKY Perfect JSAT Group.

Horizons Satellite is a joint venture between Intelsat and SKY Perfect JSAT Group. Originally formed in 2001, pursuant to a memorandum of understanding between JSAT Corporation and PanAmSat for the launch of Horizons-1, it was renewed for Horizons-2. JSAT later merged into the SKY Perfect JSAT Group and PanAmSat was acquired by Intelsat, but the companies continued with the relationship, with the order for Horizons-3e. Both companies also launched a joint satellite, Intelsat 15/JCSAT-85, but instead of the equal share agreement of this joint venture, JSAT owns a specific payload of 5 transponders out of the 22 Ku band transponders of the spacecraft.

The SKY Perfect JSAT Group is a Japanese corporate group that claims to be Asia's largest satellite communication and multi-channel pay TV company. It owns the SKY PerfecTV! satellite broadcasting service and the SKY Perfect Well Think content studio, among other businesses.

Superbird-C2, known as Superbird-7 before launch, is a geostationary communications satellite operated by JSAT Corporation and designed and manufactured by Mitsubishi Electric on the DS2000 satellite bus. It had a launch weight of 4,820 kg (10,630 lb), a 15-year design life and was the first commercial communications satellite built in Japan. Its payload is composed of 28 Ku-band transponders with a total bandwidth of 828 MHz.

Superbird-B2, also known by its pre-launch designation Superbird-4, is a Japanese communications satellite which is operated by SKY Perfect JSAT Group. It was originally built and launched for the Space Communications Corporation (SCC), which merged with JSAT Corporation (JSAT) in October 2008. It was constructed by Hughes Space and Communications and is based on the HS-601 HP satellite bus.

Superbird-A, also identified as Superbird-1 before launch, was a geostationary communications satellite designed and manufactured by Ford Aerospace) on the SSL 1300 satellite bus. It was originally ordered by Space Communications Corporation (SCC), which later merged into the SKY Perfect JSAT Group. It had a mixed Ku-band, Ka-band and X-band payload and operated on the 158° East longitude.

JCSAT-110, also known as N-SAT 110, JCSAT-7, Superbird-5 and Superbird-D, is a Japanese geostationary communications satellite which was operated by JSAT Corporation and Space Communications Corporation until both companies merged into SKY Perfect JSAT Group in 2008. It is positioned in geostationary orbit at a longitude of 110° East, from where it is used to provide communications services to Japan.

JCSAT-16

JCSAT-16 is a geostationary communications satellite operated by SKY Perfect JSAT Group and designed and manufactured by SSL on the SSL 1300 platform. It has a launch weight of 4,600 kg (10,100 lb), a power production capacity of 8.5 kW and a 15-year design life. Its payload is composed of Ku band and Ka band transponders. SKY Perfect JSAT Group plans to use JCSAT-16 as an in-orbit backup satellite for the Ku- and Ka-band satellites serving the Japanese market.

Superbird-A2, known as Superbird-6 before launch, was a geostationary communications satellite ordered and operated by Space Communications Corporation (SCC) that was designed and manufactured by Hughes on the BSS-601 satellite bus. It had a mixed Ku-band and Ka-band payload and was expected replace Superbird-A at the position at 158° East longitude. It was expected to provided television signals and business communications services throughout Japan, South Asia, East Asia, and Hawaii.

DSN-2, also known as Kirameki-2, is a geostationary communications satellite to be operated by DSN Corporation, a subsidiary of SKY Perfect JSAT Group. Its payload is a pure X-band and will be used for military communications by the Japanese military. It was launched and successfully deployed on 24 January 2017 using a H-IIA rocket flying in its heaviest configuration, the H-IIA 204. It is Japan's first dedicated military communication satellite and is designed for at least fifteen years of service.

The JSAT constellation is a communication and broadcasting satellite constellation formerly operated by JSAT Corporation and currently by SKY Perfect JSAT Group. It has become the most important commercial constellation in Japan, and fifth in the world. It has practically amalgamated all private satellite operators in Japan, with only B-SAT left as a local competitor.

DSN Corporation Japanese: 株式会社ディー・エス・エヌ is a corporation owned by SKY Perfect JSAT Group, NEC and NTT Com. It was founded on December 19, 2012 for the sole purpose of acting as an investment vehicle in the private finance initiative that would handle the Japanese military X-band DSN satellite network from 2015 to 2031.

JCSAT-3A, known as JCSAT-10 before launch, is a geostationary communications satellite operated by SKY Perfect JSAT Group (JSAT) which was designed and manufactured by Lockheed Martin on the A2100 platform.

JCSAT-3 was a geostationary communications satellite designed and manufactured by Hughes on the HS-601 satellite bus. It was originally ordered by JSAT Corporation, which later merged into the SKY Perfect JSAT Group. It has a mixed Ku-band and C-band payload and operated on the 128° East longitude until it was replaced by JCSAT-3A.

Superbird-2, also identified as Superbird-B after launch if successful, was a geostationary communications satellite designed and manufactured by Ford Aerospace on the SSL 1300 satellite bus. It was originally ordered by Space Communications Corporation (SCC), which later merged into the SKY Perfect JSAT Group. It had a mixed Ku-band, Ka-band and X-band payload and was lost at launch.

Superbird-B1, sometimes identified as Superbird-1B, was a geostationary communications satellite designed and manufactured by Ford Aerospace on the SSL 1300 satellite bus. It was originally ordered by Space Communications Corporation (SCC), which later merged into the SKY Perfect JSAT Group. It had a mixed Ku-band, Ka-band and X-band payload and was rushed into launch at the 162° East longitude due to the launch failure of Superbird-B.

Superbird-A1, also identified as Superbird-1A before launch, was a geostationary communications satellite designed and manufactured by Ford Aerospace on the SSL 1300 satellite bus. It was originally ordered by Space Communications Corporation (SCC), which later merged into the SKY Perfect JSAT Group. It had a mixed Ku-band and Ka-band payload and operated on the 158° East longitude.

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. It had a launch weight of 3,400 kg (7,500 lb), and a 10-year design life. Its payload is composed of 6 C-band, 11 Ka-band, 8 Ku-band and 1 S-band transponders.

Superbird-C, also known as Superbird-3 or Superbird-A3, was a geostationary communications satellite ordered and operated by Space Communications Corporation (SCC) that was designed and manufactured by Hughes Space and Communications Company on the HS-601 satellite bus. It has a pure Ku-band payload and was used fill the position at 144° East longitude. It provided television signals and business communications services throughout Japan, South Asia, East Asia, and Hawaii.

Superbird-9, will be a geostationary communications satellite operated by SKY Perfect JSAT and designed and manufactured by Airbus Defence and Space. Superbird-9 will be based on Airbus's reconfigurable payload satellite bus OneSat, which can steer and reassign beams for different customers and services. It will be offering Ku-band and Ka-band communication services to the Japanese market. SKY Perfect JSAT, the main satellite operator in Japan, has selected Airbus to build Superbird-9 and contracted SpaceX to launch it on Starship.

References

  1. ↑ Koti, Karhu (19 April 2018). "Superbird 8". karhukoti.com. Retrieved 19 April 2018.
  2. 1 2 Kubo, Nobuhiro (19 July 2016). "Tarpaulin delays Japanese military communications satellite by two year". SpaceNews. Retrieved 3 August 2016.
  3. 1 2 3 4 "Execution of a Program to Upgrade and Operate X-Band Satellite Communications Functions by the Subsidiary" (PDF). SKY Perfect JSAT. 15 January 2013. Retrieved 28 July 2016.
  4. 1 2 Krebs, Gunter (21 April 2016). "Superbird 8 / DSN 1 (Kirameki 1)". Gunter's Space Page. Retrieved 30 August 2016.
  5. ↑ Krebs, Gunter (8 August 2016). "DSN 2 (Kirameki 2)". Gunter's Space Page. Retrieved 30 August 2016.
  6. ↑ "SKY Perfect JSAT Procures Successor to Superbird-B2 Satellite" (PDF). SKY Perfect JSAT. 25 April 2014. Retrieved 28 July 2016.
  7. ↑ "Revision of Consolidated Earnings Forecasts". SKY Perfect JSAT. 17 June 2016. Retrieved 28 July 2016.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.