QZS-1R

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 and 18 days (in progress)
Spacecraft properties
BusDS2000
ManufacturerMitsubishi Electric
Launch mass4,100 kg (9,000 lb) [1]
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
← QZS-4
QZS-5 →

QZS-1R is a Japanese navigation satellite consisting part of the Quasi-Zenith Satellite System (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.[2][3] With the launch of QZS-1R, all satellites of QZSS will be capable of transmitting in the MADOCA signal, reaching operational capacity.[2]

  1. ^ "みちびき初号機後継機の概要" (in Japanese). Cabinet Office (Japan). Retrieved 26 October 2021.
  2. ^ a b "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.