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Hayabusa2's kinetic impact experiment: Operational planning and results
- Source :
- Acta Astronautica. 175:362-374
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Hayabusa2 is a Japanese interplanetary probe launched on December 3, 2014, which arrived at asteroid Ryugu on June 27, 2018. During its stay around Ryugu, it completed several challenging operations, including deploying two rovers and a lander, conducting two sample collections, and performing a kinetic impact experiment. The kinetic impact experiment was one of the biggest challenges of the Hayabusa2 mission. Investigating the physical and chemical properties of asteroid internal materials and structures is an important scientific objective for small body exploration. We developed a small kinetic impactor called the SCI (Small Carry-on Impactor) to achieve this objective. The SCI is a compact kinetic impactor designed to remove a small region of Ryugu's uppermost surface regolith layer and create an artificial crater. The spacecraft deployed the SCI on April 5, 2019, successfully creating an artificial crater with a diameter of 15 m. This paper describes the operational planning of the kinetic impact experiment and summarizes the operation results.
- Subjects :
- 020301 aerospace & aeronautics
Spacecraft
business.industry
Aerospace Engineering
02 engineering and technology
Kinetic energy
01 natural sciences
Regolith
0203 mechanical engineering
Impact crater
Asteroid
0103 physical sciences
Environmental science
Operational planning
Two sample
Aerospace engineering
business
Interplanetary spaceflight
010303 astronomy & astrophysics
Subjects
Details
- ISSN :
- 00945765
- Volume :
- 175
- Database :
- OpenAIRE
- Journal :
- Acta Astronautica
- Accession number :
- edsair.doi...........41a86053cd175f2407396be5079764b0