Long-Range Reconnaissance Imager on New Horizons
A. F. Cheng, H. A. Weaver, S. J. Conard, M. F. Morgan, O., Barnouin-Jha, J. D. Boldt, K. A. Cooper, E. H. Darlington, M. P. Grey, J. R., Hayes, K. E. Kosakowski, T. Magee, E. Rossano, D. Sampath, C. Schlemm, H. W., Taylor

TL;DR
LORRI is a high-resolution, narrow-angle camera on NASA's New Horizons spacecraft, designed for detailed imaging of distant icy bodies and the Kuiper Belt despite thermal and stabilization challenges.
Contribution
This paper describes the design, specifications, and operational considerations of LORRI, a novel high-resolution imaging instrument for deep space exploration.
Findings
LORRI achieves high-resolution imaging with a 4.95 microrad pixel size.
The instrument operates effectively in extreme thermal environments.
LORRI's design enables detailed imaging of distant celestial bodies.
Abstract
The LOng-Range Reconnaissance Imager (LORRI) is the high resolution imaging instrument for the New Horizons mission to Pluto, its giant satellite Charon, its small moons Nix and Hydra, and the Kuiper Belt, which is the vast region of icy bodies extending roughly from Neptune's orbit out to 50 astronomical units (AU). New Horizons launched on January 19, 2006 as the inaugural mission in NASA's New Frontiers program. LORRI is a narrow angle (field of view=0.29 deg), high resolution (4.95 microrad pixels), Ritchey-Chretien telescope with a 20.8 cm diameter primary mirror, a focal length of 263 cm, and a three lens field-flattening assembly. A 1024 x 1024 pixel (optically active region), thinned, backside-illuminated charge-coupled device (CCD) detector is used in the focal plane unit and is operated in frame transfer mode. LORRI provides panchromatic imaging over a bandpass that extends…
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