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QZSS Satellite Information


This page provides the information about QZSS satellite property and operational history which need to be known in order to properly implement advanced processing algorithms for precise orbit determination (POD) and precise point positioning (PPP) etc.

The Cabinet Office, Government of Japan ("CAO") provides the satellite property information (SPI) and the operational history information (OHI) as necessary information for improving accuracy of QZSS orbit and clock estimation and so on.
This document is freely available to any user.
However, CAO shall not be responsible and liable for any damages and losses caused by the use of this Document or the change of this Document. (including direct, indirect, incidental, special or consequential damages and losses and so on)
The user shall indicate proper credit and describe as reference document in any publication of the user the analysis result obtained by using this data.
This Document is available subject to the above terms and conditions. You may use this Document only if you agree to such terms and condition. You shall be deemed to agree such terms and conditions by using this Document.

Satellite Satellite property
Update day Operational history
Update day
QZS-1 SPI-QZS1 [pdf] 2022.3.24 OHI-QZS1 [pdf] [txt]
*Data before 2018/06/30 [pdf]
QZS-2 SPI-QZS2 [pdf] 2019.6.28 OHI-QZS2 [pdf] [txt]
*Data before 2018/06/30 [pdf]
QZS-3 SPI-QZS3 [pdf] 2022.3.24 OHI-QZS3 [pdf] [txt]
*Data before 2018/06/30 [pdf]
QZS-4 SPI-QZS4 [pdf] 2019.6.28 OHI-QZS4 [pdf] [txt]
*Data before 2018/06/30 [pdf]
QZS-1R SPI-QZS1R [pdf] 2022.1.20 OHI-QZS1R [pdf] [txt] 2024.2.26

For inquiries of other information, please contact through the following URL. The further information on QZS satellites is provided to the requestors individually according to the content of the request.