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.

[2][3] With the launch of QZS-1R, all satellites of QZSS are capable of transmitting in the MADOCA signal, reaching operational capacity.

[2] 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.

[4][5] QZS-1R was launched on 26 October 2021 by Mitsubishi Heavy Industries.