Primary objective was to perform rendezvous and docking and conduct EVA. Secondary objectives included: Rendezvous with ATDA (launched 6/1/66 from Complex 14) in 3rd revolution. Conduct systems evaluation and equiperiod rendezvous. Execute 7 experiments. Practice Docking, Rendezvous from above and to demonstrate controlled reentry. The original crew of Gemini-IX, Elliott M. See and Charles Bassett were killed in an airplane crash on February 28, 1966. The backup crew was named to the prime crew positions. Spacecraft weight: 3750kg. ATDA weight: 1088kg
