The KH-4 (Keyhole-4) was fourth version in the Corona-program to build an optical reconnaissance satellite.
Thor-Agena was a series of orbital launch vehicles. The rockets used Thor first stages and Agena second stages. They are thus cousins of the more-famous Thor-Deltas, which founded the Delta rocket family.
A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 26 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.
3 Chinese reconnaissance satellites of unknown purposes, officially reported as for "Electromagnetic environment probing".
A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 26 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 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.
Sixth flight of the Firefly Alpha small satellite launcher, launching the demonstration mission for Lockheed Martin's new LM400 satellite bus, which …