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QZS-1R

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QZS-1R
NamesQZS-1 Replacement
Michibiki-1R
Mission typeNavigation
OperatorCabinet Office (Japan) (CAO)
COSPAR ID2021-096A Edit this at Wikidata
SATCAT no.49336Edit this on Wikidata
Websitehttps://qzss.go.jp/
Mission duration3 years, 2 months and 11 days (in progress)
Spacecraft properties
BusDS2000
ManufacturerMitsubishi Electric
Launch mass4,100 kg (9,000 lb)
Dimensions5.4 × 2.9 × 2.9 m (17.7 × 9.5 × 9.5 ft)
Power6.3 kW
Start of mission
Launch date26 October 2021, 02:19:37 UTC
RocketH-IIA 202 (F-44)
Launch siteTanegashima, Yoshinobu LA-Y1
ContractorMitsubishi Heavy Industries
Orbital parameters
Reference systemGeocentric orbit
RegimeMedium Earth orbit
Quasi-Zenith Satellite System Constellation← QZS-4QZS-5 →

QZS-1R is a Japanese navigation satellite consisting part of the Quasi-Zenith Satellite System (QZSS). QZS-1R replaced the QZS-1 (Michibiki-1) satellite launched in September 2010. QZS-1 had a design life of ten years. As QZS-1 was 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 are 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.

References

  1. "みちびき初号機後継機の概要" (in Japanese). Cabinet Office (Japan). Retrieved 26 October 2021.
  2. ^ "種子島で内閣府担当者が語る、初号機後継機打上げへの道のり" (in Japanese). Cabinet Office (Japan). 21 October 2021. Retrieved 26 October 2021.
  3. "MADOCA Products". JAXA. 3 August 2020. Retrieved 26 October 2021.
  4. ^ Matumura, Takehiro (25 October 2021). "H-IIAロケット44号機の打ち上げは10月26日に1日延期「みちびき」初号機後継機を搭載". 宇宙（そら）へのポータルサイトsorae.jp (in Japanese). Retrieved 26 October 2021.
  5. "打ち上げ間近のみちびき初号機後継機。開発者に聞く" (in Japanese). Cabinet Office (Japan). Retrieved 26 October 2021.

External links

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