ARC is one of NASA's 10 major field centers and is located in California's Silicon Valley. The center was named after Joseph Sweetman Ames, a founding member of the NACA. View of ARC (left) and of Hanger One (right)Īmes Research Center (ARC) at Moffett Field was founded on December 20, 1939. The selection of Houston as the location of the Manned Spacecraft Center resulted in some controversy at NASA Langley and in the surrounding area at the time, given they had previously expected either for Langley to be expanded or for a nearby location in the Hampton Roads region to be selected for the center. Starting in 1958, when NASA started Project Mercury, LaRC housed the Space Task Group, which was expanded into the Manned Spacecraft Center and moved to Houston in 1961–1962. Both Langley Field and the Langley Laboratory are named for aviation pioneer Samuel Pierpont Langley. LaRC researchers use more than 40 wind tunnels to study improved aircraft and spacecraft safety, performance, and efficiency. Established in 1917 by the National Advisory Committee for Aeronautics, the center currently devotes two-thirds of its programs to aeronautics, and the rest to space. ![]() LaRC focuses primarily on aeronautical research, though the Apollo lunar lander was flight-tested at the facility and a number of high-profile space missions have been planned and designed on-site. Langley Research Center (LaRC), founded in 1917, is the oldest of NASA's field centers, located in Hampton, Virginia. View of LaRC (left) and its research aircraft (right) Four of these were inherited from its predecessor, the National Advisory Committee for Aeronautics (NACA) two others were transferred to NASA from the United States Army and NASA commissioned and built the other four itself shortly after its formation in 1958. The OIG determined at least 33 of NASA's 155 facilities were underutilized. ![]() In 2013 a NASA Office of the Inspector General's (OIG) Report recommended a Base Realignment and Closure Commission (BRAC) style organization to consolidate NASA's little used facilities. NASA has used or supported various observatories and telescopes, and an example of this is the NASA Infrared Telescope Facility. ![]() Some facilities serve more than one application for historic or administrative reasons. All other facilities fall under the leadership of at least one of these field centers. There are 10 NASA field centers, which provide leadership for and execution of NASA's work. NASA Headquarters in Washington, DC provides overall guidance and political leadership to the agency. We assess the impact on performance of the different manufacturing and alignment errors.There are NASA facilities across the United States and around the world. The CMC mask was manufactured at JPL’s Microdevices Laboratory and we include surface profile characterization measurement. In particular, the model verification includes measured sags of the manufactured PIAA mirrors by NuTek. We use empirical measurements from the vacuum testbed to verify the instrument model and its performance including line-of-sight errors, instrument alignment, and fabricated components. ![]() In this work, we review the theoretical performance of the PIAACMC instrument designed to meet a 1e-9 raw contrast goal in 10% broadband light in a region from 2-8 L/D both before and after the wavefront control loop. PIAACMC has been recently implemented for LUVOIR-A and is currently being tested in vacuum at JPL’s High-Contrast Imaging Testbed (HCIT). PIAACMC designs are compatible with large, on-axis, segmented apertures such as the Large UV / Optical/ Infrared A (LUVOIR-A) concept currently being considered by the decadal survey review which would greatly enhance the possibility to achieve statistically significant scientific yields and signal quality for direct imaging exoplanet surveys. Model Validation of Phase-Induced Amplitude Apodization Complex Mask Coronagraph for LUVOIR-A in Vacuum The Phase-Induced Amplitude Apodization Complex Mask Coronagraph (PIAACMC) is a coronagraph architecture for the next generation of large space telescopes optimized for habitable exoplanet imaging that can achieve attractive theoretical performance with high throughput at small inner working angles (IWA).
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