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CBAS (Continuous Broadcast Augmenting SATCOM) is a geostationary satellite to provide communications relay capabilities to support senior leaders, combatant commanders, augmenting existing military satcom.

CBAS is managed by the Military Satellite Communications Directorate of the U.S. Air Force’s Space and Missile Systems Center. The mission of CBAS is to augment existing military satellite communications capabilities and broadcast military data continuously through space-based, satellite communications relay links.

The mass of CBAS is estimated to be between 2000 and 3000 kg.

CBAS was launched in 2018 as the prime payload on the AFSPC 11 mission on an Atlas-5(551)¹ rocket directly into geostationary orbit.

Nation: USA
Type / Application: Communications
Operator: US Air Force (USAF) → US Space Force (USSF)
Power: Deployable solar arrays, batteries
Mass: 2000 - 3000 kg
Orbit: Geostationary
Satellite COSPAR Date LS Launch Vehicle Remarks
CBAS (USA 283) 2018-036A 14.04.2018 CC SLC-41 Atlas-5(551)¹ with EAGLE, Mycroft, USA 286, USA 287