Innovative NEO Search Strategy using Space Telescope
- Paper number
IAC-19,B6,2,7,x50598
- Author
Dr. Toshifumi Yanagisawa, Japan, Japan Aerospace Exploration Agency (JAXA)
- Coauthor
Mr. Hirohisa Kurosaki, Japan, Japan Aerospace Exploration Agency (JAXA)
- Coauthor
Mr. Toshinori Ikenaga, Japan, Japan Aerospace Exploration Agency (JAXA)
- Coauthor
Mr. Kohki Kamiya, Japan, Japan Aerospace Exploration Agency (JAXA)
- Coauthor
Dr. Makoto Yoshikawa, Japan, JAXA
- Coauthor
Mr. Shinsuke Kuroda, Japan, Japan Manned Space Systems Corporation
- Coauthor
Prof. Keiichi Hirako, Japan, Japan Aerospace Exploration Agency (JAXA)
- Year
2019
- Abstract
Most of NEOs from 10m to 100m in diameter have not been discovered, yet. These NEOs have more chances to collide with the Earth than lager NEOs and may cause significant localized damages like the Chelyabinsk event in 2013. We have developed a new analysis algorithm for such small NEOs at extraordinary low cost in comparison with the current survey systems and discovered 7 NEOs since Jan. 2017. Although the existing NEO search programs uses 1-2m telescopes and large CCDs, our technology uses many CCD or CMOS frames from small telescopes of about 20cm to find out faint and fast moving NEOs in the frames. The FPGA (field programmable gate array) board is used to implement the sophisticated image processing algorithm and reduce analysis time. We are considering applying the algorithm on the data taken with the spacecraft enabling us to discover NEOs which cannot be detected from ground-based sites. 4 small telescopes pointing to direction will realize the optics of large aperture and wide field of view which is essential for NEO search. On-board FPGAs can stack the 4 images with pixel accuracy. The ground test using the star simulator showed that NEOs of 20.7magnitude are detectable using four 10cm-optics. 100kg class satellite will be able to accomplish our mission in sun-synchronous orbit of dawn-dusk. Power needed for the satellite is about 100W. The satellite also will be used for the observation of geo-synchronous orbits which contributes to the space situation awareness.
- Abstract document
- Manuscript document
IAC-19,B6,2,7,x50598.pdf (🔒 authorized access only).
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