Hayabusa 2. Mission Objectives and Tools
On December 3, the Hayabusa-2 probe was successfully launched from the Tanegashima cosmodrome to the asteroid 1999 JU3.
The asteroid was discovered on May 10, 1999 as part of the LINEAR project at the Socorro Observatory and does not yet have its own name. The asteroid is not particularly remarkable except that it was chosen as a target for visiting the Hayabus-2 mission for the purpose of disembarking and collecting soil. The diameter of the asteroid is almost twice as large (0.92 km) than that of the asteroid (25143) Itokawa, which in 2005 visited the first apparatus of the Hayabus series.
1999 JU3 - a typical near-Earth asteroid from the Apollo group, which belongs to the spectral class C and has an elongated orbit, due to which during its movement around the Sun it crosses not only the orbit of Earth, but also Mars.
')
December 3, 2014 : Launch
End of 2015 : Gravity maneuver.
Summer 2018 : Arrival at the asteroid and its study within 18 months.
Exploration of the asteroid using tools such as a Near Infrared Spectrometer (Near InfraRed Spectrometer (NIRS3)) and a Thermal Infrared Imager (TIR) ​​thermal infrared spectrometer.
Branch MINERVA rover and MASCOT Lander.
Taking samples from the asteroid.
Late 2020 : Return to Earth.
Satellite dimensions 1.0m x 1.6m x 1.4m, weight about 600 kg. Hayabusa is equipped with ion engines with a load of 10 mN for each engine.
Sampler mechanism (SMP). SMP will collect samples from the asteroid. The design of the mechanism is the same as that used on the first Hayabus apparatus, with a few modifications.
A small projectile will be shot as soon as the end of the cylindrical nozzle touches the surface of the asteroid. Then the ejected substance will be collected in a trap.
Small Carry-on Impactor (SCI) - The Liner Impactor weighing 2 kg will be dropped onto the surface of the asteroid at a speed of 2 km / s to create an artificial crater.
The structure of the asteroid will be examined before and after the collision with the impactor, as well as the characteristics of the ejected substance.
NIRS3 Infrared Spectrometers (Near InfraRed Spectrometer, where 3 means “3μm”) and TIR (Thermal Infrared Imager)
Hayabusa 2 will be located 20 km above the asteroid. With the help of NIRS3, the composition of the asteroid will be studied, the search for water and the determination of the minerals of which it consists will go. With the help of TIR, the surface of the asteroid will be studied by changes in surface temperature.
Rover MINERVA-II
Three small rovers will be planted on the surface of the asteroid, which will take soil samples.
MASCOT landing gear
Lander carries on itself 4 devices (MicrOmega, MAG, CAM, and MARA). After landing, the device will “bounce” once to change its location.
The asteroid was discovered on May 10, 1999 as part of the LINEAR project at the Socorro Observatory and does not yet have its own name. The asteroid is not particularly remarkable except that it was chosen as a target for visiting the Hayabus-2 mission for the purpose of disembarking and collecting soil. The diameter of the asteroid is almost twice as large (0.92 km) than that of the asteroid (25143) Itokawa, which in 2005 visited the first apparatus of the Hayabus series.
1999 JU3 - a typical near-Earth asteroid from the Apollo group, which belongs to the spectral class C and has an elongated orbit, due to which during its movement around the Sun it crosses not only the orbit of Earth, but also Mars.
')
Chronology of flight.
December 3, 2014 : Launch
End of 2015 : Gravity maneuver.
Summer 2018 : Arrival at the asteroid and its study within 18 months.
Exploration of the asteroid using tools such as a Near Infrared Spectrometer (Near InfraRed Spectrometer (NIRS3)) and a Thermal Infrared Imager (TIR) ​​thermal infrared spectrometer.
Branch MINERVA rover and MASCOT Lander.
Taking samples from the asteroid.
Late 2020 : Return to Earth.
Characteristics of the device
Satellite dimensions 1.0m x 1.6m x 1.4m, weight about 600 kg. Hayabusa is equipped with ion engines with a load of 10 mN for each engine.
Instruments
Sampler mechanism (SMP). SMP will collect samples from the asteroid. The design of the mechanism is the same as that used on the first Hayabus apparatus, with a few modifications.
A small projectile will be shot as soon as the end of the cylindrical nozzle touches the surface of the asteroid. Then the ejected substance will be collected in a trap.
Small Carry-on Impactor (SCI) - The Liner Impactor weighing 2 kg will be dropped onto the surface of the asteroid at a speed of 2 km / s to create an artificial crater.
The structure of the asteroid will be examined before and after the collision with the impactor, as well as the characteristics of the ejected substance.
NIRS3 Infrared Spectrometers (Near InfraRed Spectrometer, where 3 means “3μm”) and TIR (Thermal Infrared Imager)
Hayabusa 2 will be located 20 km above the asteroid. With the help of NIRS3, the composition of the asteroid will be studied, the search for water and the determination of the minerals of which it consists will go. With the help of TIR, the surface of the asteroid will be studied by changes in surface temperature.
Rover MINERVA-II
Three small rovers will be planted on the surface of the asteroid, which will take soil samples.
MASCOT landing gear
Lander carries on itself 4 devices (MicrOmega, MAG, CAM, and MARA). After landing, the device will “bounce” once to change its location.
Source: https://habr.com/ru/post/375033/
All Articles