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Ballistic coefficient: Less than 35 kg/m 2 (7.2 lb/sq ft) Diameter of aeroshell: ... and second was the Mars sample return mission planned for 1975.
In ballistics, the ballistic coefficient (BC, C b) of a body is a measure of its ability to overcome air resistance in flight. [1] It is inversely proportional to the negative acceleration: a high number indicates a low negative acceleration—the drag on the body is small in proportion to its mass.
The InSight mission to Mars launched with a C 3 of 8.19 km 2 /s 2. [5] The Parker Solar Probe (via Venus) plans a maximum C 3 of 154 km 2 /s 2. [6] Typical ballistic C 3 (km 2 /s 2) to get from Earth to various planets: Mars 8-16, [7] Jupiter 80, Saturn or Uranus 147. [8] To Pluto (with its orbital inclination) needs about 160–164 km 2 /s 2. [9]
Its readings could “be used to derive a density profile of the Martian atmosphere” based on the acceleration data combined with knowledge of the probe's speed and ballistic coefficient. [9] • Impact accelerometer: The impact accelerometer was built with a range of ±120,000 g for the large expected acceleration on impact with Mars ...
Ballistic capture was first used by the Japanese spacecraft Hiten in 1991 as a method to get to the Moon. [3] [4] [5] This was designed by Edward Belbruno and J. Miller. [3] [5] The ballistic capture transfer that performed this is an exterior ballistic capture transfer since it goes beyond the Earth-Moon distance. An interior ballistic capture ...
This mission aims to address key solar system exploration objectives, enhancing the company’s understanding of Mars, potentially determining if life ever existed there, and aiding preparations ...
Because of the proximity of the Mars moons to Mars, any mission to them may also be considered a mission to Mars from some perspectives. Past missions Three missions to land on Phobos have been launched; the Soviet Phobos program in the late 1980s saw the launch of Phobos 1 and Phobos 2 , while the Russian Fobos-Grunt sample return mission was ...
where the quantities in these equations are: is the velocity > is the flight path angle is the altitude; is the atmospheric density; is the ballistic coefficient; is the gravitational acceleration