Launch scheduled for October 21, 2025
Ten-Koh2, developed by the Okuyama Laboratory, is a CubeSat to obtain valuable data for future space development through various environmental observations in low Earth orbit and in-orbit demonstrations of next-generation communication systems.
It is scheduled to be launched from the Tanegashima Space Center aboard the first HTV-X rocket developed by JAXA.
Main Mission Objectives
- Demonstration of Continuous Operation of the Linear Transponder
We aim to achieve continuous operation of the linear transponder, which is often operated with time restrictions. By enabling continuous operation, amateur radio operators around the world will be able to access and obtain data from this satellite, among other advantages.
- “Downlink of Illustrations, Music, and Video Data
This satellite features a rare initiative for a university satellite: the concept of space entertainment. In collaboration with the College of Art, Nihon University, we are creating content with the aim of allowing a wider audience to experience the accessibility and familiarity of space development and amateur radio technology.
- Demonstration of Microwave-Band Communication Technology
By employing the microwave band, which has seen limited prior use, this satellite conducts CW beacon communication with the aim of establishing and promoting the wider adoption of microwave-band satellite communication methods.
- Demonstration of High-Speed Data Transmission Technology
In this demonstration, we will utilize the high-speed data transmitter developed by JAMSAT (Japan Amateur Satellite Association). Through 4FSK communication at 38.4 kbps, we aim to demonstrate how quickly data can be transmitted and to evaluate the deviation from theoretical performance. The primary mission data will be downlinked using this transmitter.
- Verification and Demonstration of the Camera Payload Developed by National Cheng Kung University
We will equip the satellite with a camera developed by the Camera Payload Development Team at National Cheng Kung University. This camera will capture images using several shooting patterns and downlink the photographs.
- Observation of Space Environmental Degradation of Advanced Space Materials
The satellite will carry advanced space materials and observe their degradation by utilizing data from various sensors, including strain sensors.
- Geospace Observation Using a High-Energy Charged Particle Detector
The satellite will be equipped with a charged particle detector (Liulin) to observe charged particles originating from deep space.
Satellite Specifications
The satellite is a 6U CubeSat with dimensions of 30 × 20 × 10 cm. Solar cells are mounted on its surfaces to provide operating power. The satellite consists of a structural subsystem, thermal control subsystem, attitude control subsystem, power subsystem, communication subsystem, and mission subsystem.
