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.
American orbital launch vehicle. Commercial name for the military's Thor-Delta.
Last two operational (TROPICS-06 & TROPICS-07) satellites for NASA's Time-Resolved Observations of Precipitation Structure and Storm Intensity with a…
Virgin Galactic return to space mission ahead of the first commercial flight.
Third flight of the KSLV-II "Nuri" launch vehicle, carrying NEXTSat-2 as well as SNIPE A through D.
Progress resupply mission to the International Space Station.
This is a Crew Dragon flight for a private company Axiom Space. The mission will carry a professionally trained commander alongside three private ast…
Macau Science Satellite-1 (MUST-1A/B) are 2 magnetosphere research satellites from the Macau University of Science and Technology (MUST) aiming to st…
5 spare satellites for the Iridium NEXT constellation and 16 satellites for the OneWeb constellation (15 of current generation and 1 demonstration sa…
A batch of satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
This satellite is a part of the geostationary component of the 3rd phase of the Chinese Beidou (Compass) satellite navigation system. It features a p…
A batch of 56 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.