Thor Delta | Echo 1
Launch Successful
L - -- : -- : -- : --
Instantaneous launch window.
Launch Window
Aug. 12, 1960, 9:39 a.m. - Aug. 12, 1960, 9:39 a.m.
Instantaneous launch window.
Aug. 12, 1960, 9:39 a.m. - Aug. 12, 1960, 9:39 a.m.
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.
Classified Earth observation satellite officially reported as for "national resources/hydrology/meteorology surveying & disaster management" purposes.
Communications Satellite for the Indian Navy, replacing GSAT-7 for secure real-time links between Indian warships, submarines, aircraft, and shore-ba…
Dedicated rideshare flight to a mid-inclination orbit with dozens of small microsatellites and nanosatellites for commercial and government customers.
A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Tenth crewed flight to the Chinese space station.
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Gaofen is a series of civilian Earth observation satellites developed and launched for the China High-definition Earth Observation System (CHEOS), a …
First flight of the upgraded Japanese HTV-X spacecraft designed to resupply the International Space Station.