Clarreo Pathfinder: Mission Overview and Current Status
Yolanda Shea, Gary A. Fleming, Greg Kopp, Constantine Lukashin, Peter Pilewskie, Paul Smith, Kurt Thome, Bruce A. Wielicki, Xu Liu, Wan Wu
Abstract
The Climate Absolute Radiance and Refractivity Observatory (CLARREO) Pathfinder (CPF) mission consists of a high accuracy reflected solar spectrometer that will take measurements from the International Space Station for one year starting in 2023. CPF will demonstrate that its novel on-orbit absolute calibration approaches are capable of achieving 0.3% (1-sigma) radiometric uncertainty. Additionally, using its two-axis pointing gimbal which enables nearly-concurrent measurements matching look angles with other orbiting sensors, CPF will demonstrate a novel inter-calibration approach by inter-calibrating CERES and VIIRS. CPF is currently in its Final Design and Fabrication Stage and recently passed its Critical Design Review.