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  2. Indian Data Relay Satellite System - Wikipedia

    en.wikipedia.org/wiki/Indian_Data_Relay...

    Indian Data Relay Satellite System or IDRSS is a planned Indian constellation of Inter-satellite communications satellites. It is planned to initially comprise two satellites, CMS-04 (formerly IDRSS-1) & IDRSS-2 in geostationary orbit. It will facilitate relay of information between various Indian spacecraft, in-flight launch vehicle monitoring and assist the Indian Human Spaceflight Programme ...

  3. Project Echo - Wikipedia

    en.wikipedia.org/wiki/Project_Echo

    Project Echo was the first passive communications satellite experiment. Each of the two American spacecraft, launched in 1960 and 1964, were metalized balloon satellites acting as passive reflectors of microwave signals. Communication signals were transmitted from one location on Earth and bounced off the surface of the satellite to another Earth location. [1]

  4. Satellite - Wikipedia

    en.wikipedia.org/wiki/Satellite

    Satellite. A satellite or artificial satellite [a] is an object in space, typically a spacecraft, placed into orbit around a celestial body. Satellites have a variety of uses, including communication relay, weather forecasting, navigation ( GPS ), broadcasting, scientific research, and Earth observation.

  5. Explorer 8 - Wikipedia

    en.wikipedia.org/wiki/Explorer_8

    Explorer 8 was a 40.88 kg (90.1 lb) mercury-battery -powered satellite. The payload was in the form of two truncated cones with the bases attached to a cylindrical equator. The outer shell was aluminum and had a diameter of 76 cm (30 in) and a height of 76 cm (30 in). The 108.00 MHz transmitter had 100 mW average power, and it functioned for the life of the battery pack (54 days). The data ...

  6. Volumetric Imaging and Processing of Integrated Radar

    en.wikipedia.org/wiki/Volumetric_Imaging_and...

    Volumetric Imaging and Processing of Integrated Radar, known by the acronym VIPIR, is an analysis and display program for Doppler weather radar, created and sold by Baron Services. [1] This software allows improved analysis of radar data for private users, in particular television stations, similar to the Weather Decision Support System program ...

  7. Solar and Heliospheric Observatory - Wikipedia

    en.wikipedia.org/wiki/Solar_and_Heliospheric...

    In addition to its scientific mission, it is a main source of near-real-time solar data for space weather prediction. Along with Wind, Advanced Composition Explorer (ACE), and Deep Space Climate Observatory (DSCOVR), SOHO is one of four spacecraft in the vicinity of the Earth – Sun L1 point, a point of gravitational balance located approximately 0.99 astronomical unit (AU) from the Sun and 0 ...

  8. Weather satellite - Wikipedia

    en.wikipedia.org/wiki/Weather_satellite

    GOES-16, a United States weather satellite of the meteorological-satellite service. A weather satellite or meteorological satellite is a type of Earth observation satellite that is primarily used to monitor the weather and climate of the Earth. Satellites can be polar orbiting (covering the entire Earth asynchronously), or geostationary ...

  9. Radar calibration satellite - Wikipedia

    en.wikipedia.org/wiki/Radar_calibration_satellite

    Active calibration satellites are equipped with transponders that emit a signal on command. The ground radar station submits a transmit command and takes a measurement of the satellite's location. The transponder's signal is received by a radar receiver and combined with the satellite's ephemeris data to calculate the satellite's actual ...