Astra SPAC Presentation Deck

GLOSSARY OF KEY TERMS ● ● ● ● ● ● ● Gap Filling: Represents launching satellites to fill out an orbital plane that already has a number of operational satellites GEO: A satellite in geostationary orbit appears fixed at the same place in the sky around the equator and allows for user terminals with fixed antenna. GEO altitude is 22,300 miles Geostationary: Moving in a geosynchronous orbit in the plane of the equator, so that it remains stationary in relation to a fixed point on the Earth's surface; this orbit is achieved at an altitude of 22,300 miles (35,900 km) above the Earth LEO: Low-Earth Orbit satellite that orbits less than 1/17 the distance from the earth than a GEO resulting in lower latency; however, LEO satellites move in the sky vs. GEO satellites that appear fixed Non-GEO or NGEO: Low- or medium-earth orbit satellites orbiting closer to the earth resulting in lower latency than GEO satellites; however, NGEO satellites move in the sky vs. GEO satellites that appear fixed in the sky Orbit: The curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution Orbital Plane: The orbital plane of a revolving body is the geometric plane in which its orbit lies. Three non- collinear points in space suffice to determine an orbital plane Payload: Payload is the carrying capacity of an aircraft or launch vehicle, usually measured in terms of weight Sun-Synchronous Orbit: A Sun-synchronous orbit, also called a heliosynchronous orbit, is a nearly polar orbit around a planet, in which the satellite passes over any given point of the planet's surface at the same local mean solar time PROPRIETARY & CONFIDENTIAL - DO NOT REDISTRIBUTE ASTRA 38

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