Launch of Early Bird, the first commercial communications satellite to be placed in geosynchronous orbit.
Early Bird, also known as Intelsat I, was indeed the first commercial communications satellite to be placed in geosynchronous orbit. It was launched on April 6, 1965, by NASA for the Communications Satellite Corporation (COMSAT), which later became Intelsat.
Purpose: Early Bird was designed to relay television, telephone, and telegraph signals between the United States and Europe. Its geosynchronous orbit meant that it stayed fixed relative to a point on Earth, allowing for continuous communication coverage between these regions.
Design and Technology: The satellite was cylindrical in shape, measuring about 76 centimeters (30 inches) in diameter and 170 centimeters (67 inches) in length. It weighed approximately 34 kilograms (75 pounds). Early Bird used a system of microwave relay and ground stations to receive, amplify, and retransmit signals.
Launch and Orbit: Early Bird was launched aboard a Delta D rocket from Cape Kennedy (now Cape Canaveral) in Florida. It was placed into a geosynchronous orbit, specifically positioned over the Atlantic Ocean.
Operational Success: Early Bird was highly successful and revolutionized global communications. It facilitated the transmission of the first live television broadcasts across the Atlantic, including the historic boxing match between Muhammad Ali and Sonny Liston in 1965. It also significantly reduced the time delay in international telephone calls.
Later Operations: Early Bird operated for almost four years, far surpassing its expected operational lifespan of 18 months. It was eventually retired in 1969 but remained in orbit as a backup until 1976.
Legacy: Early Bird’s success paved the way for the development and deployment of subsequent communications satellites. It demonstrated the feasibility and reliability of satellite communication systems, leading to the rapid expansion of global telecommunications networks.