launched from USA

AEHF-6

Success
MAR 26202020:18:00 UTC

Atlas V 551 carried the sixth and final Advanced Extremely High Frequency (AEHF) military communications satellite, the first new satellite launched for the newly established US Space Force.

A 12U cubesat, TDO-2, rode along on a dispenser on the Centaur upper stage and separated about 30 minutes after liftoff. Georgia Tech designed it and also called it OrCa (Orbital Calibration).

launched from SLC-41 Canaveral

aboard Atlas V 551 AV-086 into GSO

Broadcast

Watch how the launch went

Open on YouTube

Payloads · 2

  • 01

    AEHF-6 (USA-298)

    Military communications

  • 02

    TDO-2

    Geodesy

last updated Oct 8, 2026