OMUSAT-III Spacecraft - Nanosats Database

Spacecraft	OMUSAT-III (OMUSAT-3)
Form factor	CubeSat
Units or mass	2U
Status	not launched, expected in 2027
Launcher	Interstellar ZERO
Organization	Osaka Metropolitan University
Institution	University
Entity type	Academic / Education
Country	Japan
Oneliner	Amateur radio mission with a camera, SSTV transmission and deployable membrane.
Description	A satellite with a camera to capture images of the Earth. Both the captured images and images pre-loaded before launch will be transmitted to amateur radio operators via SSTV (Slow Scan Television). The membrane used for the main mission is utilized as both a deployment experiment and as the subject for imaging. The deployed membrane will be photographed using a technique called "fringe projection method", and the images will be stored within the satellite. These stored images will be downlinked to the ground station, where image analysis of the membrane will be conducted. In our mission, we will capture multiple images, automatically select the ones with the Earth in the field of view while on orbit, and then downlink them after embedding our call sign. Furthermore, we will divide a single image into multiple segments, like a puzzle, and transmit them over several passes. We believe this method will enable us to downlink relatively large images even during short communication passes. Through this SSTV mission, we aim not only to enhance our organization's wireless communication capabilities but also to widely convey the appeal of SSTV technology to the entire amateur radio community, pursuing mutual technological advancement together. "OMUSAT-Ⅲ" is the Center's third generation of ultra-small satellite, a 2U (10 x 10 x 20 cm) CubeSat. The bus system and mission system were developed based on the design of its predecessor, "HIROGARI." This project is supported by the "Space Architect Development Program Utilizing MBSE" and has introduced a development system based on "MBSE."
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Photo sources	[1]

Last modified: 2025-12-29