SpaceWire-based thermal-infrared imager system for asteroid sample return mission HAYABUSA2

Hiroki Hihara; Kaori Iwase; Junpei Sano; Hisashi Otake; Tatsuaki Okada; Ryu Funase; Ryoichi Kashikawa; Isamu Higashino; Tetsuya Masuda

doi:10.1117/1.JRS.8.084987

28 April 2014 SpaceWire-based thermal-infrared imager system for asteroid sample return mission HAYABUSA2

Hiroki Hihara, Kaori Iwase, Junpei Sano, Hisashi Otake, Tatsuaki Okada, Ryu Funase, Ryoichi Kashikawa, Isamu Higashino, Tetsuya Masuda

Author Affiliations +

Journal of Applied Remote Sensing, Vol. 8, Issue 1, 084987 (April 2014). https://doi.org/10.1117/1.JRS.8.084987

Abstract

A thermal-infrared (TIR) imager system is developed for HAYABUSA2, which is planned to be launched in 2014 and aims at sample-return from a C-class near-Earth asteroid 162173 (1999JU3) considered to contain organic or hydrated materials. The system consists of a TIR imager and digital electronics, which are used not only for the scientific investigation of physical properties of the asteroid surface, but also for the assessment of landing site selection and safe descent operation onto the asteroid surface with in situ measurement. TIR adopts an uncooled bolometer. Image operations such as multiple images summation, dark image subtraction, and the compensation of dead pixels are processed onboard. A processing module is connected to sensor interfaces through SpaceWire in order to provide deterministic processing time. Data compression is also provided to reduce the restriction of transmission time, which provides the equivalent compression ratio as JPEG2000 in 1/30 processing time in average. A high-speed data recorder is connected through SpaceWire in order to record TIR data in parallel with other sensor data. The modularity of SpaceWire enables us to use these as built devices for TIR and inherits the same design as the long-wavelength infrared imager developed for the Venus climate orbiter Akatsuki.

Citation Download Citation

Hiroki Hihara, Kaori Iwase, Junpei Sano, Hisashi Otake, Tatsuaki Okada, Ryu Funase, Ryoichi Kashikawa, Isamu Higashino, and Tetsuya Masuda "SpaceWire-based thermal-infrared imager system for asteroid sample return mission HAYABUSA2," Journal of Applied Remote Sensing 8(1), 084987 (28 April 2014). https://doi.org/10.1117/1.JRS.8.084987

Published: 28 April 2014

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available