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Astrometry with the Wide-Field Infrared Space Telescope
Casertano, Stefano; Lu, Jessica R.; Anderson, Jay +15 more
The Wide-Field Infrared Space Telescope (WFIRST) will be capable of delivering precise astrometry for faint sources over the enormous field of view of its main camera, the Wide-Field Imager (WFI). This unprecedented combination will be transformative for the many scientific questions that require precise positions, distances, and velocities of sta…
ExoEarth yield landscape for future direct imaging space telescopes
Stark, Christopher C.; Mazoyer, Johan; Pueyo, Laurent +19 more
The expected yield of potentially Earth-like planets is a useful metric for designing future exoplanet-imaging missions. Recent yield studies of direct-imaging missions have focused primarily on yield methods and trade studies using "toy" models of missions. Here, we increase the fidelity of these calculations substantially, adopting more realisti…
Colorado Ultraviolet Transit Experiment data simulator
France, Kevin; Rüdisser, Hannah T.; Koskinen, Tommi +5 more
The Colorado Ultraviolet Transit Experiment (CUTE) is a 6U NASA CubeSat carrying on board a low-resolution (R ∼ 2000 to 3000), near-UV (2500 to 3300 Å) spectrograph. It has a rectangular primary Cassegrain telescope to maximize the collecting area. CUTE, which is planned for launch in spring 2020, is designed to monitor transiting extra-solar plan…
Principal component analysis of up-the-ramp sampled infrared array data
Rauscher, Bernard J.; Arendt, Richard G.; Fixsen, Dale J. +3 more
We describe the results of principal component analysis (PCA) of up-the-ramp sampled infrared (IR) array data from the Hubble Space Telescope wide field camera 3 (WFC3 IR), James Webb Space Telescope NIRSpec, and prototype Wide Field Infrared Survey Telescope's wide field instrument detectors. These systems use, respectively, Teledyne H1R, H2RG, a…
Subpixel real-time jitter detection algorithm and implementation for polarimetric and helioseismic imager
Volkmer, Reiner; Roma, David; Carmona, Manuel +12 more
The polarimetric and helioseismic imager instrument for the Solar Orbiter mission from the European Space Agency requires a high stability while capturing images, specially for the polarimetric ones. For this reason, an image stabilization system has been included in the instrument. It uses global motion estimation techniques to estimate the jitte…