SPACEMOBILE-003

A radio link weakens greatly as distance increases. A space-to-phone system must balance transmitted power, antenna gain, frequency, bandwidth, atmospheric losses and the small antenna inside an ordinary mobile device.

A radio link weakens greatly as distance increases. A space-to-phone system must balance transmitted power, antenna gain, frequency, bandwidth, atmospheric losses and the small antenna inside an ordinary mobile device.

AST SpaceMobile reports a phased-array area of approximately 64.4 square meters (693 square feet) for each of the first five BlueBird satellites. A large array can concentrate radio energy electronically and form beams toward selected service areas without mechanically pointing the entire spacecraft.

Low Earth orbit reduces signal travel distance and latency compared with geostationary orbit, but each spacecraft sees a smaller part of Earth and moves quickly across the sky. Continuous service therefore requires a coordinated constellation rather than one satellite.

Frequency coordination and partnerships with terrestrial mobile operators are essential because the satellite system must work within regulated spectrum and existing cellular networks.

TransitSatellite calculates altitude, speed and orbital period from the current catalog data. Those values change over time and are separate from company claims about network performance.

The current public orbital catalog identifies this object, but verified mission-specific information may be limited. TransitSatellite will expand this page when authoritative information is available.

• A radio link weakens greatly as distance increases. A space-to-phone system must balance transmitted power, antenna gain, frequency, bandwidth, atmospheric losses and the small antenna inside an ordinary mobile device.
• AST SpaceMobile reports a phased-array area of approximately 64.4 square meters (693 square feet) for each of the first five BlueBird satellites. A large array can concentrate radio energy electronically and form beams toward selected service areas without mechanically pointing the entire spacecraft.
• Low Earth orbit reduces signal travel distance and latency compared with geostationary orbit, but each spacecraft sees a smaller part of Earth and moves quickly across the sky. Continuous service therefore requires a coordinated constellation rather than one satellite.
• Frequency coordination and partnerships with terrestrial mobile operators are essential because the satellite system must work within regulated spectrum and existing cellular networks.
• TransitSatellite calculates altitude, speed and orbital period from the current catalog data. Those values change over time and are separate from company claims about network performance.

A radio link weakens greatly as distance increases. A space-to-phone system must balance transmitted power, antenna gain, frequency, bandwidth, atmospheric losses and the small antenna inside an ordinary mobile device. AST SpaceMobile reports a phased-array area of approximately 64.4 square meters (693 square feet) for each of the first five BlueBird satellites. A large array can concentrate radio energy electronically and form beams toward selected service areas without mechanically pointing the entire spacecraft. Low Earth orbit reduces signal travel distance and latency compared with geostationary orbit, but each spacecraft sees a smaller part of Earth and moves quickly across the sky. Continuous service therefore requires a coordinated constellation rather than one satellite. Frequency coordination and partnerships with terrestrial mobile operators are essential because the satellite system must work within regulated spectrum and existing cellular networks. TransitSatellite calculates altitude, speed and orbital period from the current catalog data. Those values change over time and are separate from company claims about network performance.

The current two-line element set reports approximately 15.2041 revolutions per day. Dividing 1,440 minutes by that value gives an estimated orbital period of 94.7 minutes.

SPACEMOBILE-003 launched with four companion BlueBird satellites on 12 September 2024 aboard a SpaceX Falcon 9 from Cape Canaveral, Florida. The five satellites were released into low Earth orbit and later unfolded their large communications arrays. They form the company's first commercial group of BlueBird spacecraft and were designed to provide non-continuous service while additional satellites are deployed.

Low Earth orbit is the region closest to Earth used by most crewed spacecraft, many science missions, Earth-observation satellites, and large constellations. Objects move quickly and commonly complete an orbit in roughly 90 to 130 minutes.

LEO can provide detailed Earth views, lower communications delay, and easier access than higher orbits, but it covers less area per spacecraft and is more affected by atmospheric drag.

• What can an orbit tell us before the mission is fully identified?
• Why are stable catalog identifiers important?

Current identity and orbital elements come from CelesTrak’s public GP data. Calculated orbit values are derived from the current TLE and may change after catalog updates. Mission-history claims are added separately and require authoritative sources.

• CelesTrak NORAD GP Element Sets
• BlueBird 1-5 · AST SpaceMobile
• BlueBird 1-5 Mission Launch Webcast · AST SpaceMobile