Pegasus XL | Space Test Experiments Platform-4 (STEP-4)
Launch Successful
L - -- : -- : -- : --
Instantaneous launch window.
Launch Window
Oct. 22, 1997, 1:13 p.m. - Oct. 22, 1997, 1:13 p.m.
Instantaneous launch window.
Oct. 22, 1997, 1:13 p.m. - Oct. 22, 1997, 1:13 p.m.
The Pegasus is an air-launched rocket developed by Orbital Sciences Corporation (now part of Northrop Grumman Innovation Systems). Capable of carrying small payloads of up to 443 kilograms (977 lb) into low Earth orbit, the vehicle consists of three solid propellant stages and an optional monopropellant fourth stage. Pegasus is released from its carrier aircraft at approximately 40,000 ft (12,000 m), and its first stage has a wing and a tail to provide lift and attitude control while in the atmosphere.
Dedicated rideshare flight to a mid-inclination orbit with dozens of small microsatellites and nanosatellites for commercial and government customers…
Chinese classified satellite claimed to be for communication technology test purposes. Actual mission not known.
4 small satellites for LEO Internet of Things (IoT) communication purposes.
Second flight of the KAIROS launch vehicle. 5 satellites for testing various technologies will be on board: * TATARA-1 * PARUS-T1A * SC-Sat1…
Seventh and eighth of a constellation of eleven high-throughput communications satellites in Medium Earth Orbit (MEO) built by Boeing and operated by…
Sixth batch of satellites for a reconnaissance satellite constellation built by SpaceX and Northrop Grumman for the National Reconnaissance Office to…
GPS-III (Global Positioning System) is the first evolution stage of the third generation of the GPS satellites. It consists of the first ten (known a…
4 X-band synthetic-aperture radar Earth observation satellites for the Chinese Earth observation satellite company PIESAT.
A batch of 10 Low Earth Orbit communication satellites for the Chinese state owned SatNet constellation operated by the China Satellite Network Group…
Sub-orbital launch of the Hypersonic Accelerator Suborbital Test Electron (HASTE) program for a confidential customer.