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 WIKIQZSS (Quasi Zenith Satellite System) is a Japanese satellite navigation system operating from inclined, elliptical geosynchronous orbits to achieve o…
A batch of 22 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
First of two new-generation satellites built by Airbus to provide secure communications to the Spanish government, its allies, and various internatio…
This is a replacement satellite for the Indian Regional Navigation Satellite System. The constellation will provide India with an alternative to GPS …
A batch of 21 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 23 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Chinese classified satellite claimed to be for communication technology test purposes. Actual mission not known.
18 Low Earth Orbit communication satellites with Ku, Q and V band payloads for the G60 constellation operated by Shanghai Spacecom Satellite Technolo…
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.