Custom very-high-resolution Earth observation satellite built for Marble Imaging, first of a planned 200-satellite constellation.
MIRI Earth Observation Satellite
Custom very-high-resolution Earth observation satellite built for Marble Imaging, first of a planned 200-satellite constellation.
Description
MIRI is a custom Earth observation satellite designed and manufactured by Reflex Aerospace for Marble Imaging, following Marble Imaging's win of the German Aerospace Center's (DLR) small satellite payload competition (Kleinsatelliten-Nutzlastwettbewerb). MIRI is the first satellite in Marble Imaging's planned 200-satellite very-high-resolution (VHR) Earth observation constellation. The spacecraft is custom designed from the ground up around Marble Imaging's mission objectives, operating in a 500 km Sun-synchronous orbit with a 10:30 local time of ascending node, for a 3-year mission duration (5-year optional extension). MIRI has a total mass of approximately 145 kg, generates 600 W of solar array nominal power with 780 Wh of usable battery capacity, and can draw up to 1200 W peak power. Communications include S-band TMTC (1 Mbit/s downlink, 128 kbit/s uplink) and X-band payload downlink at up to 400 Mbit/s. MIRI is anticipated to launch in Q4 2026.
Specifications
| Total mass | Approx. 145 kg |
|---|---|
| Orbit | 500 km Sun Synchronous Orbit |
| LTAN | 10:30 |
| Mission duration | 3 years (5 years optional) |
| Peak power | 1200 W |
| Usable battery capacity | 780 Wh |
| Solar array nominal power | 600 W |
| S-band TMTC | 1 Mbit/s downlink, 128 kbit/s uplink |
| X-band payload downlink | Up to 400 Mbit/s |
| Expected launch | Q4 2026 |
| Customer | Marble Imaging (first of planned 200-satellite VHR EO constellation) |