Echo 1

Overview

Destination: Elliptical Orbit
Mission: Communications

Elliptical Orbit Space Launch Complex 17A Cape Canaveral, FL, USA

The Echo 1A spacecraft was a 30.48 m diameter balloon of mylar polyester film 0.0127 mm thick. The spacecraft was designed as a passive communications reflector for transcontinental and intercontinental telephone (voice), radio, and television signals. It had 107.9 MHz beacon transmitters for telemetry purposes. These transmitters were powered by five nickel-cadmium batteries that were charged by 70 solar cells mounted on the balloon. Because of the large area-to-mass ratio of the spacecraft, data for the calculation of atmospheric density and solar pressure could be acquired. The spacecraft was also used to evaluate the technical feasibility of satellite triangulation during the latter portion of its life. Echo 1 failed during the coast period after launch, as the attitude control jets on the second stage failed and the spacecraft did not achieve orbit. Echo 1A was a successful relaunch.

Thor Delta

Family: Thor
Configuration: Delta

American orbital launch vehicle. Commercial name for the military's Thor-Delta.

Specifications
  • Stages
    3
  • Length
    31.0 m
  • Diameter
    2.44 m
  • Fairing Diameter
    2.44 m
  • Launch Mass
    54 T
  • Thrust
    667 kN
Family
  • Name
    Thor Delta
  • Family
    Thor
  • Variant
    Delta
  • Alias
  • Full Name
    Thor Delta
Payload Capacity
  • Launch Cost
    $7270000
  • Low Earth Orbit
    226 kg
  • Geostationary Transfer Orbit
  • Direct Geostationary
  • Sun-Synchronous Capacity

McDonnell Douglas

McDonnell Douglas

(MDC)

Successes: 0 Failures: 0 Pending: 0

Agency Type: Commercial

WIKI

Cape Canaveral, FL, USA

Space Launch Complex 17A


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