Hayabusa 2 Arrives at Ryugu Asteroid Arrival! http://www.spaceflightinsider.com/wp-content/uploads/2015/11/rsz-1920px_JAXA-Hayabusa-2.jpg Next Slide

Hayabusa 2 Arrives at Ryugu Mission Facts: Launch—December 3, 2014 Mission type—asteroid sample return Operator—JAXA (Japan Aerospace Exploration Agency) Mission dates: Arrival at asteroid Ryugu—June 27, 2018 Depart asteroid–December 2019 Return samples collected to Earth—December 2020 http://www.spaceflightinsider.com/wp-content/uploads/2015/11/rsz-1920px_JAXA-Hayabusa-2.jpg; https://en.wikipedia.org/wiki/Hayabusa2 Next Slide

Hayabusa 2 Arrives at Ryugu A near-Earth asteroid It measures approximately 1 kilometer (0.6 mile) in diameter Discovered on May 10, 1999 by astronomers near Socorro, New Mexico It’s name refers to Ryūgū, an undersea dragon’s palace visited by Urashima Taro, a fisherman in a Japanese folk story who brings back a mysterious treasure box from the underwater castle, much like the Hayabusa 2 returning with samples Asteroid Ryugu http://www.spaceflightinsider.com/missions/solar-system/hayabusa-2-arrives-at-asteroid-ryugu/; https://en.wikipedia.org/wiki/162173_Ryugu Photo of Ryugu taken from a distance of 40 km by Hayabusa 2’s Optical Navigation Camera Next Slide

Hayabusa 2 Arrives at Ryugu Scientific Instruments: Remote Sensing Optical Navigation Camera (ONC) Near-Infrared Camera (NIR), Thermal Infrared Camera (TIR) Light Detection and Ranging (LIDAR) Sampling Sampling Device (SMP) Small Carry-On Impactor (SCI) Deployable Camera (DCAM) Lander/Rover Mobile Asteroid Surface Scout (MASCOT) Minerva-II (Rover 1A, Rover 1B, Rover 2) https://en.wikipedia.org/wiki/Hayabusa2; https://mascot.cnes.fr/en/MASCOT/GP_sonde.htm More Info Remote Sensing More Info Sampling More Info Lander/Rover Next Slide

Hayabusa 2 Arrives at Ryugu http://earthsky.org/space/hayabusa2-landing-site-chosen-for-mascot-lander-on-asteroid-ryugu Landing site for MASCOT lander on Ryugu is shown in blue circle. Picked from 10 possible candidates, it is located in the southern hemisphere of the 3,117-foot (950-meter) diameter asteroid. MASCOT is due to touch down on October 3, 2018. Next Slide

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Hayabusa 2 Arrives at Ryugu

Hayabusa 2 Arrives at Ryugu Remote Sensing: Optical Navigation Camera (ONC)—spacecraft navigation during asteroid approach and to image the surface of the asteroid Near-Infrared Camera (NIR)—mineral composition of the asteroid surface Thermal Infrared Camera (TIR)—determine surface temperature of asteroid Light Detection and Ranging (LIDAR)—measure distance from spacecraft to the asteroid LIDAR and ONC—determine the detailed topography of the asteroid and measure the asteroid’s gravitational field ONC-T, ONC-W1 NIR https://en.wikipedia.org/wiki/Hayabusa2; http://global.jaxa.jp/projects/sat/hayabusa2/instruments.html TIR LIDAR Return

Hayabusa 2 Arrives at Ryugu Sampling: The spacecraft will approach the surface of the asteroid with a sampler horn; a projectile (5-gram tantalum bullet) will be fired at 300 meters per second into the surface; the resulting ejecta particles are collected by a catcher at the top of the horn An additional sample will be taken of material deeper into the surface which has not been subjected to space weathering; this will be done with the Small Carry-On Impactor (SCI) to gather a larger sample. Following SCI deployment, Hayabusa 2 will move to the far side of the asteroid in order to avoid debris from the explosion Deployable Camera (DCAM) will be left behind on the surface to observe the explosion https://en.wikipedia.org/wiki/Hayabusa2; http://global.jaxa.jp/projects/sat/hayabusa2/instruments.html SCI More Info SCI Return

Hayabusa 2 Arrives at Ryugu Small Carry-on Impactor (SCI): An additional sample will be taken of material deeper into the surface, which has not been subjected to space weathering. This requires removing a larger volume of surface material with a more substantial impactor For this purpose, Hayabusa 2 will deploy the Small Carry-on Impactor (SCI), an explosively formed penetrator consisting of a 2.5 kg (5.5 lb) copper projectile contained in a 4.5 kg (9.9 lb) shaped charge of plasticized HMX (a nitroamine high explosive) SCI will separate from Hayabusa 2 at an altitude of about 500 meters and descend toward the asteroid under gravity, since it has no thrusters Following SCI deployment, Hayabusa 2 will maneuver to the far side of the asteroid, in order to avoid debris from the explosion Hayabusa 2 will leave behind a deployable camera (DCAM) to observe the explosion of SCI Approximately 40 minutes after separation, SCI will explode and drive the copper impactor onto the asteroid. Hayabusa 2 will wait about two weeks for the debris to clear from the impact site, before descending into the newly-formed crater to retrieve samples https://en.wikipedia.org/wiki/Hayabusa2 Return

Hayabusa 2 Arrives at Ryugu Lander/Rover: Four small rovers carried by Hayabusa 2 to investigate the asteroid surface; they will be deployed at an altitude of 60 meters and fall freely to the surface under the asteroid’s weak gravity MINERVA-II is a container that will deploy two rovers ROVER-1A and ROVER-1B in addition to ROVER-2 ROVER-1A and ROVER-1B will move by tumbling and ROVER-2 will move by hopping; they will each have cameras and a thermometer MASCOT (Mobile Asteroid Surface Scout) will carry an infrared spectrometer, a magnetometer, a radiometer, and a camera; it will move by tumbling; it will investigate the surface structure and mineralogical composition, the thermal behavior and the magnetic properties of the asteroid. MINERVA-II with rovers https://en.wikipedia.org/wiki/Hayabusa2; http://global.jaxa.jp/projects/sat/hayabusa2/instruments.html MASCOT Return