DSN-2
| Names | DSN-2 Kirameki-2 |
|---|---|
| Mission type | Communications |
| Operator | DSN Corporation |
| COSPAR ID | 2017-005A |
| SATCAT no. | 41940 |
| Mission duration | 15 years |
| Spacecraft properties | |
| Bus | DS-2000[1] |
| Manufacturer | Mitsubishi Electric[1] |
| Start of mission | |
| Launch date | January 2017 (planned) |
| Rocket | H-IIA |
| Launch site | Tanegashima LA-Y |
| Transponders | |
| Band | X band |
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 is planned to be launched on January 24, 2017.[2]
History
JSAT along NEC, NTT Com and Maeda Corporation formed a joint venture called DSN Corporation. On January 15, 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, DSN-1, on December 2015, with a start of operations on March 2016 and a termination of operations on April 2030. The second satellite, DSN-2, was expected to launch on January 2017, starting operations on 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 to be build by Mitsubishi Electric.[1]
On July 2016, it was published that a May 25 mishap during air transport of DSN-1 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.[5]
References
- ^ a b c "SKY Perfect JSAT Group Earning Results Briefing for 2Q/2016". Sky Perfect JSAT Holdings Inc. November 4, 2016. Retrieved November 27, 2016.
- ^ "Launch of the H-IIA Launch Vehicle No. 32 with X-band defense telecommunication satellite-2 on board". Mitsubishi Heavy Industries. November 25, 2016. Retrieved November 27, 2016.
- ^ a b c d "Execution of a Program to Upgrade and Operate X-Band Satellite Communications Functions by the Subsidiary" (PDF). SKY Perfect JSAT Corporation & Intelsat. January 15, 2013. Retrieved 2016-07-28.
- ^ Krebs, Gunter Dirk (2016-04-21). "Superbird 8 / DSN 1 (Kirameki 1)". Gunter's Space Page. Retrieved 2016-08-30.
- ^ Kubo, Nobuhiro (July 19, 2016). "Tarpaulin delays Japanese military communications satellite by two year". Space News. Retrieved 2016-08-03.