Abstract: We describe the design of a high-throughput pushbroom imaging spectrometer and telescope system that is…
Author: New NASA STI
Low Order Wavefront Sensing and Control for WFIRST-AFTA Coronagraph
Abstract: To maintain the required WFIRST Coronagraph performance in a realistic space environment, a low order…
Snow and Water Imaging Spectrometer (SWIS): Optomechanical and System Design for a Cubesat-compatible Instrument
Abstract: We discuss progress in the SWIS optomechanical design, thermal analysis, and mission plan. We also…
Effect of DM Actuator Errors on the WFIRST/AFTA Coronagraph Contrast Performance
Abstract: The WFIRST/AFTA 2.4 m space telescope currently under study includes a stellar coronagraph for the…
Zernike Wavefront Sensor Modeling Development for LOWFS on WFIRST-AFTA
Abstract: WFIRST-AFTA design makes use of an existing 2.4m telescope for direct imaging of exoplanets. To…
Studies of the Effects of Control Bandwidth and Dark-Hole Size on the HCIT Contrast Performance
Abstract: In this presentation, we compare model predictions with HCIT experiments. These were done for Coronagraph…
An Overview of WFIRST-AFTA Coronagraph Modelling
Abstract: The WFIRST/AFTA 2.4 m space telescope currently under study includes a stellar coronagraph for the…
Tropical Simultaneous Nadir Observations for IR Sounder Evaluation and Comparison
Abstract: Simultaneous Nadir Observations (SNOs) contain thousands of pairs of observations taken within 8 km and…
Studies of the Effects of Control Bandwidth and Dark-Hole Size on the HCIT Contrast Performance
Abstract: We have carried out both theoretical and experimental studies of the sensitivity of dark hole…
Modulation Transfer Function of Infrared Focal Plane Arrays
Abstract: Modulation transfer function (MTF) is the ability of an imaging system to faithfully image a…