Vanguard | Vanguard II
Launch Successful
L - -- : -- : -- : --
Instantaneous launch window.
Launch Window
Feb. 17, 1959, 3:55 p.m. - Feb. 17, 1959, 3:55 p.m.
Instantaneous launch window.
Feb. 17, 1959, 3:55 p.m. - Feb. 17, 1959, 3:55 p.m.
Vanguard II is an Earth orbiting satellite and the first weather satellite. It was designed to measure cloud-cover distribution over the daylight portion of its orbit for a period of 19 days and to provide information on the density of the atmosphere.
The Vanguard rocket was intended to be the first launch vehicle the United States would use to place a satellite into orbit. Instead, the Sputnik crisis caused by the surprise launch of Sputnik 1 led the U.S., after the failure of Vanguard TV3, to quickly orbit the Explorer 1 satellite using a Juno I rocket, making Vanguard I the second successful U.S. orbital launch.
Lockheed Martin's Space Division started in the production of missiles and later ICBM's in the 1950s. Their TITAN missile system was used for 12 Gemini spacecraft and the Voyager probes. They have worked largely in collaboration with NASA on many of their probes, landers, and spacecraft, and hope to play a key role in NASA's return to the moon in 2024.
INFO WIKIA batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Ninth crewed flight to the Chinese space station.
Dedicated rideshare flight to a mid-inclination orbit with dozens of small microsatellites and nanosatellites for commercial and government customers.
32nd commercial resupply services mission to the International Space Station operated by SpaceX. The flight will be conducted under the second Commer…
Tenth batch of satellites for a reconnaissance satellite constellation built by SpaceX and Northrop Grumman for the National Reconnaissance Office to…
A group of 6 Chinese satellites reported to be for "space environment probing and other related technological testing". Actual usage not known.
Classified payload for the U.S. National Reconnaissance Office.
NS-31 is the 11th crewed flight for the New Shepard program and the 31st in its history.
A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 21 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.