Thor Delta C | Explorer 21
Launch Successful
L - -- : -- : -- : --
Instantaneous launch window.
Launch Window
Oct. 4, 1964, 3:45 a.m. - Oct. 4, 1964, 3:45 a.m.
Instantaneous launch window.
Oct. 4, 1964, 3:45 a.m. - Oct. 4, 1964, 3:45 a.m.
Explorer 21 (IMP 2) was a solar-cell and chemical-battery powered spacecraft instrumented for interplanetary and distant magnetospheric studies of energetic particles, cosmic rays, magnetic fields, and plasmas.
American orbital launch vehicle family with Thor first stage and a delta second stage.
Ku- and Ka-band geostationary communication satellite for China Satcom at 92.2° East, replacing ChinaSat 9.
Unidentified payload for the Russian military.
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.
Zhangheng 1-02, also known as CSES-02 (China Seismo-Electromagnetic Satellite-02), is the follow-on mission to Zhangheng 1/CSES, a Chinese–Italian sp…
A batch of 23 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.
Synthetic aperture radar Earth observation satellite for Japanese Earth imaging company iQPS.
A batch of 23 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.