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ELS-R1
Spectrum
ELS-R1 is the first free-flying/returnable experiment hosting spacecraft developed by the Japanese company ElevationSpace. The ELS-R platform is an uncrewed service that enables research, development, and manufacturing in space, followed by the return of results and materials to Earth. Compared to traditional methods that rely on crewed facilities such as the International Space Station (ISS), ELS-R offers greater flexibility, fewer operational constraints, and less stringent safety reviews, making it possible to access space more frequently and efficiently.
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Mission
ELS-R1 is the first free-flying/returnable experiment hosting spacecraft developed by the Japanese company ElevationSpace. The ELS-R platform is an uncrewed service that enables research, development, and manufacturing in space, followed by the return of results and materials to Earth. Compared to traditional methods that rely on crewed facilities such as the International Space Station (ISS), ELS-R offers greater flexibility, fewer operational constraints, and less stringent safety reviews, making it possible to access space more frequently and efficiently.
- Launch vehicle
- Spectrum
- Mission type
- Technology
- Destination orbit
- Low Earth Orbit
- Launch pad
- Orbital Launch Pad
- Provider
- Isar Aerospace
The vehicle
Published configuration and flight history.

Spectrum
Spectrum is a small launch vehicle developed by German company Isar Aerospace.
- Height
- 28 m
- Diameter
- 2 m
- Stages
- 2
- Recorded launches
- 2
- First flight
- 2025-03-30
Launch window
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A precise launch window has not been published.
Launch site & orbit
Andøya Spaceport
Launch site & orbit
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Coverage & sources
Mission coverage
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Further reading
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