Pegasus | APEX
Launch Successful
L - -- : -- : -- : --
Instantaneous launch window.
Launch Window
Aug. 3, 1994, 2:38 p.m. - Aug. 3, 1994, 2:38 p.m.
Instantaneous launch window.
Aug. 3, 1994, 2:38 p.m. - Aug. 3, 1994, 2:38 p.m.
APEX (Advanced Photovoltaic & Electronic Experiment) successfully tested a wide array of advanced photovoltaic and electronic components in a harsh radiation environment, provided significant data to support improved designs for future space systems. During operation, APEX's highly elliptical orbit allowed the investigation of space plasma effects on high-voltage operation (current leakage at positive voltages and arcing at negative voltages) in the perigee region, plus the investigation of space radiation effects (decreased array power output from passage through the inner radiation belt) in the apogee region.
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.
A batch of satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Note: Name of payload is provisional. First launch of an ultimately 5 reconnaissance satellites for the South Korean Defense Acquisition Program A…
Progress resupply mission to the International Space Station.
A batch of 23 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Note: Payload identity and Cosmos series number uncertain. The Razdan satellite is reportedly a new electro-optical reconnaissance satellite desi…
Officially described as "Satellite-Internet Technology Demonstration Satellite(s)" built by Chinese Academy of Sciences. Probable 3 (?) test satellit…
A batch of 23 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Malligyong-1c (meaning "Telescope-1") is the third attempt by North Korea to launch a satellite officially declared to be for military reconnaissance…
A batch of 22 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Second test flight of the two-stage Starship launch vehicle. The booster is expected to separate 170 seconds into flight and return to land approxima…