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TitleHyperspectral Environment and Resource Observer (HERO) mission
AuthorBergeron, M; Hollinger, A; Staenz, K; Maszkiewicz, M; Neville, R A; Qian, S -E; Goodenough, D G
SourceCanadian Journal of Remote Sensing vol. 34, 2008 p. S1-S11,
Alt SeriesNatural Resources Canada, Contribution Series 20181956
PublisherInforma UK Limited
Mediapaper; on-line; digital
File formatpdf
Subjectsgeophysics; remote sensing
ProgramCanada Centre for Remote Sensing Divsion
Released2014 06 02
AbstractThe Canadian Space Agency (CSA) has conducted mission and payload concept studies in preparation for launch of the first Canadian hyperspectral Earth observation satellite. Named the Hyperspectral Environment and Resource Observer (HERO) mission, its objective is to provide information-rich optical imagery that enhances decision-making and stewardship of sensitive ecosystems and natural resources. The mission is designed to provide accurate forest inventory and health information, map the geology of the north, assess environmental impacts, and strategically extend the Canadian investment in Earth observations. The mission builds on the Canadian industry experience and expertise in satellite development and remote sensing and will make new capabilities available for a wide variety of users worldwide. In 2005, the preliminary system requirement review (PSRR) and phase A (preliminary mission definition) were concluded. The resulting mission characteristics are a swath width greater than 30 km, a ground sampling distance of 30 m, a spectral range from 400 to 2500 nm, and a spectral sampling interval of 10 nm. HERO is primarily a flexible tasking mission with a raw capacity of ?600?000 km2 daily ground area coverage. Large-area mapping is to be performed as a background mission. The proposed instrument design consists of dual spectrometers and telescope assemblies. The fore-optics is composed of a three-mirrors anastigmatic (TMA) telescope. The Offner-type spectrometers have separate visible near infrared (VNIR) and short-wave infrared (SWIR) detectors. Expected performance includes a signal-to-noise ratio (SNR) of 600:1 in the VNIR and 200:1 in the SWIR, F/2.2 spectrometers with minimized smile and keystone, and instrument modulation transfer function (MTF) of at least 0.3 at the Nyquist frequency for all wavelengths and fields.

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