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Also called Michibiki 1


Designation 37158 / 10045A
Launch date 11 Sep 2010
Country of origin Japan
Mission Navigation
Perigee/Apogee 32618/38950 km (Tundra orbit)
Inclination 41°
Period 1 day
Launch vehicle H2A

Owned by Jaxa. Cost $869 million to build and launch. Went operational in Dec 2010.

First of 3 planned spacecraft GPS augmentation constellation. With the Tundra orbit, the satellites appear at high elevation angles during part of the day, convenient for high building environment.

In 2016, 3 new satellites are annouced for FY 2017 and 3 more in FY 2023.

sat-index articles

n2yo.com tracking

Technical data


Prime contractor Melco
Mass at launch 4100 kg
Dry mass 1800 kg
Dimension 2.9 x 3.1 x 6.2 m (25.3 m deployed)
Solar array  
DC power BOL: 6.7 KW
Design lifetime 10 years

Has an L-band payload and a C-band payload for communications.

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