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Onboard Detection of Active Canadian Sulfur Springs: A Europa AnalogueWe discuss a current, ongoing demonstration of insitu onboard detection in which the Earth Observing-1 spacecraft detects surface sulfur deposits that originate from underlying springs by distinguishing the sulfur from the ice-rich glacial background, a good analogue for the Europan surface. In this paper, we describe the process of developing the onboard classifier for detecting the presence of sulfur in a hyperspectral scene, including the use of a training/testing set that is not exhaustively labeled, i.e.not all true positives are marked, and the selection of 12, out of 242, Hyperion instrument wavelength bands to use in the onboard detector. This study aims to demonstrate the potential for future missions to capture short-lived science events, make decisions onboard, identify high priority data for downlink and perform onboard change detection. In the future, such capability could help maximize the science return of downlink bandwidth-limited missions, addressing a significant constraint in all deep-space missions.
Document ID
20090031832
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Castano, Rebecca
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wagstaff, Kiri
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Gleeson, Damhnait
(Colorado Univ. Boulder, CO, United States)
Pappalardo, Robert
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Chien, Steve
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tran, Daniel
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Scharenbroich, Lucas
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Moghaddam, Baback
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tang, Benyang
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bue, Brian
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Doggett, Thomas
(Arizona State Univ. Tempe, AZ, United States)
Mandl, Dan
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Frye, Stuart
(Noblis, Inc. Falls Church, VA, United States)
Date Acquired
August 24, 2013
Publication Date
February 26, 2008
Subject Category
Space Sciences (General)
Meeting Information
Meeting: International Symposium on Artificial Intelligence, Robotics, and Automation in Space
Location: Los Angeles, CA
Country: United States
Start Date: February 26, 2008
Distribution Limits
Public
Copyright
Other
Keywords
autonomy
onboard science
Europa

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