QZS-1R is a Japanese
navigation satellite
A satellite navigation or satnav system is a system that uses satellites to provide autonomous geo-spatial positioning. It allows satellite navigation devices to determine their location (longitude, latitude, and altitude/elevation) to high pr ...
consisting part of the
Quasi-Zenith Satellite System
The Quasi-Zenith Satellite System (QZSS), also known as , is a four-satellite regional time transfer system and a satellite-based augmentation system developed by the Japanese government to enhance the United States-operated Global Positioni ...
(QZSS). QZS-1R will replace the
QZS-1 (Michibiki-1) satellite launched in September 2010. QZS-1 has a design life of ten years. As QZS-1 is an experimental satellite, it did not broadcast the MADOCA (Multi-GNSS Advanced Demonstration tool for Orbit and Clock Analysis) signal, which can be used for centimeter-order navigation.
With the launch of QZS-1R, all satellites of QZSS will be capable of transmitting in the MADOCA signal, reaching operational capacity.
Satellite
QZS-1R is the fourth operational Quasi-Zenith Satellite to be launched. The design of the satellite is based on
QZS-2 and 4, with minor differences such as an increase in the number of temperature sensors on board.
Launch
QZS-1R was launched on 26 October 2021 by
Mitsubishi Heavy Industries
is a Japanese multinational engineering, electrical equipment and electronics corporation headquartered in Tokyo, Japan. MHI is one of the core companies of the Mitsubishi Group and its automobile division is the predecessor of Mitsubishi Mo ...
.
References
External links
Special website of launch
Satellites of Japan
Spacecraft launched in 2021
2021 in Japan
Spacecraft launched by H-II rockets
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