Dawn Spacecraft Launch

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The Dawn spacecraft was propelled by three xenon ion thrusters derived from NSTAR technology used by the Deep Space 1 spacecraft,[54] using one at a time. They have a specific impulse of 3,100 s and produce a thrust of 90 mN. [55] The whole spacecraft, including the ion propulsion thrusters, was powered by a 10 kW (at 1 AU) triple-junction gallium arsenide photovoltaic solar array manufactured by Dutch Space. [56][57]Dawn was allocated 247 kg (545 lb) of xenon for its Vesta approach, and carried another 112 kg (247 lb) to reach Ceres,[58] out of a total capacity of 425 kg (937 lb) of on-board propellant. [59] With the propellant it carried, Dawn was able to perform a velocity change of approximately 11 km/s over the course of its mission, far more than any previous spacecraft achieved with onboard propellant after separation from its launch rocket. [58] However, the thrust was very gentle; it took four days at full throttle to accelerate Dawn from zero to 60 mph (96 km/h). Dawn is NASA's first purely exploratory mission to use ion propulsion engines. [60] The spacecraft also has twelve 0. 9 N hydrazine thrusters for attitude control (orientation), which were also used to assist in orbital insertion. [61]


Dawn Launch NASA
Dawn Launch NASA
NASA Dawn Spacecraft Successfully Launched
NASA Dawn Spacecraft Successfully Launched
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
Dawn Spacecraft Stock Photos Dawn Spacecraft Stock
News NASAS Dawn Spacecraft Enroute to Shed Light on
News NASAS Dawn Spacecraft Enroute to Shed Light on
Dawn Journal 10 Years in Space The Planetary Society
Dawn Journal 10 Years in Space The Planetary Society
NASAs Dawn spacecraft finishes objectives at Dwarf Planet
NASAs Dawn spacecraft finishes objectives at Dwarf Planet
Scientists celebrate 10th anniversary of Dawn missions
Scientists celebrate 10th anniversary of Dawn missions
Expendable launch system Wikipedia
Expendable launch system Wikipedia
Dawn Launch Press Kit Solar System Exploration NASA Science
Dawn Launch Press Kit Solar System Exploration NASA Science
NASA news Dawn spacecraft has MONTHS left after 11year
NASA news Dawn spacecraft has MONTHS left after 11year
Asteroid Vesta Nasas Dawn captures 3D view of 13mile
Asteroid Vesta Nasas Dawn captures 3D view of 13mile
News NASAS Dawn Spacecraft Enroute to Shed Light on
News NASAS Dawn Spacecraft Enroute to Shed Light on
NASAs Dawn spacecraft captures stunning video of Ceres
NASAs Dawn spacecraft captures stunning video of Ceres
NASA says goodbye to its Dawn spacecraft after 11 years of
NASA says goodbye to its Dawn spacecraft after 11 years of
Whats inside Ceres Dawn mission finds possible ancient
Whats inside Ceres Dawn mission finds possible ancient
NASAs Dawn spacecraft captures first images of Ceres
NASAs Dawn spacecraft captures first images of Ceres
Reuters Pictures DAWNSPACECRAFT
Reuters Pictures DAWNSPACECRAFT
Electric Propulsion at JPL Multimedia
Electric Propulsion at JPL Multimedia
Dawn Spacecraft Mission Overview Spacecraft Satellites
Dawn Spacecraft Mission Overview Spacecraft Satellites
NASAs Dawn Mission Is Over Except Actually Not WIRED
NASAs Dawn Mission Is Over Except Actually Not WIRED
Dawn Satellite Launch 45 Dawn Spacecraft starts its
Dawn Satellite Launch 45 Dawn Spacecraft starts its
Dawn spacecraft Wikipedia
Dawn spacecraft Wikipedia
Dawn Spacecraft Mission Overview Spacecraft Satellites
Dawn Spacecraft Mission Overview Spacecraft Satellites