MIRI Earth Observation Satellite
Reflex Aerospace
Custom very-high-resolution Earth observation satellite built for Marble Imaging, first of a planned 200-satellite constellation.
Technical 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)
About
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.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
