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  2. Cygnus OA-4 - Wikipedia

    en.wikipedia.org/wiki/Cygnus_OA-4

    Following three launch delays due to inclement weather beginning on 3 December 2015, OA-4 was launched at 21:44:57 UTC on 6 December 2015. With a liftoff weight of 7,492 kg (16,517 lb), OA-4 became the heaviest payload ever launched on an Atlas V. [ 9 ] The spacecraft rendezvoused with and was berthed to the ISS on 9 December 2015. [ 5 ]

  3. Near Earth Network - Wikipedia

    en.wikipedia.org/wiki/Near_Earth_Network

    The Near Earth Network (NEN, formerly GN or Ground Network) provides orbital communications support for near-Earth orbiting customer platforms via various ground stations, operated by NASA and other space agencies.

  4. Lunar Gateway - Wikipedia

    en.wikipedia.org/wiki/Lunar_Gateway

    The Lunar Gateway, or simply Gateway, is a space station which is planned to be assembled in orbit around the Moon.The Gateway is intended to serve as a communication hub, science laboratory, and habitation module for astronauts as part of the Artemis program.

  5. List of PSLV launches - Wikipedia

    en.wikipedia.org/wiki/List_of_PSLV_launches

    As a result, the fourth stage was shut down by a software override timer after burning 435 seconds, before reaching the target orbit or depleting propellant. The injection velocity was 140 m/s low, resulting in an orbit of 301 x 823 km instead of the planned 817 km circular SSO . [ 39 ]

  6. Power and Propulsion Element - Wikipedia

    en.wikipedia.org/wiki/Power_and_Propulsion_Element

    In May 2019, Maxar Technologies was contracted by NASA to manufacture this module, which will also supply the station with electrical power and is based on Maxar's SSL 1300 series satellite bus. [30] The PPE will use Busek 6 kW Hall-effect thrusters and NASA Advanced Electric Propulsion System (AEPS) Hall-effect thrusters.

  7. Long March 4C - Wikipedia

    en.wikipedia.org/wiki/Long_March_4C

    The Long March 4C, also known as the Chang Zheng 4C, CZ-4C and LM-4C, previously designated Long March 4B-II, is a Chinese orbital launch vehicle.It is launched from the Jiuquan, Taiyuan, and Xichang Satellite Launch Centers, and consists of 3 stages.