{"projectId":93238,"project":{"projectId":93238,"title":"Broadband Active Segmented Aperture and Radial Shear Nulling","startDate":"2017-10-01","startYear":2017,"startMonth":10,"endDate":"2018-09-01","endYear":2018,"endMonth":9,"programId":153,"program":{"ableToSelect":false,"acronym":"GSFC IRAD","isActive":true,"description":"<p>Goddard&#39;s IRAD program is managed under Goddard&#39;s Office of Chief Technologist.&nbsp; Activities are coordinated in collaboration with the Sciences and Exploration Directorate; Applied Engineering and Technology Directorate; Flight Projects Directorate; Wallops Flight Facility; New Opportunites Office; SBIR/STTR program; Goddard Strategic Partnerships Office; and the Export Compliance Office.</p><p>IRAD provides&quot;seed funding&quot; to develop concepts, reduce technology risk, and advance human capital and technological capabilities.&nbsp; The program is highly competitive, opportunity-driven, and 100% strategically aligned with NASA&#39;s and GSFC&#39;s strategic priorities.&nbsp; A significant portion of the program is focused on Early Stage Innovations for high-risk, strategically aligned, potential high-payoff technologies that are longer-term or lower TRL.</p>","parentProgram":{"ableToSelect":false,"acronym":"IRAD","isActive":true,"programId":87,"responsibleMd":{"canUserEdit":false,"locationEdit":false,"organizationRolePretty":"","organizationTypePretty":""},"title":"Center Independent Research & Development","manageGaps":false,"acronymOrTitle":"IRAD"},"parentProgramId":87,"programId":153,"responsibleMd":{"organizationId":4910,"organizationName":"Mission Support Directorate","acronym":"MSD","organizationType":"NASA_Mission_Directorate","canUserEdit":false,"locationEdit":false,"organizationRolePretty":"","organizationTypePretty":"NASA Mission Directorate"},"responsibleMdOffice":4910,"title":"Center Independent Research & Development: GSFC IRAD","manageGaps":false,"acronymOrTitle":"GSFC IRAD"},"acronym":"VNC","description":"<p>The Visible Nulling Coronagraph (VNC) is a starlight suppression system for enabling exoplanet detection<br />and atmospheric measurement. Conceptual space telescope missions including the large UV/optical/IR<br />(LUVOIR) surveyor require such a starlight suppression system to carry out the scientific goals associated<br />with directly imaging nearby worlds. Direct imaging is complementary to upcoming missions like TESS, and<br />should eventually enable access to the &gt; 95% of habitable worlds outside of transit discovery space.<br />This IRAD supports near-term work to 1) fabricate and test symmetric broad-<br />band interferometric nulling optics; 2) demonstrate automated fine alignment of the Segmented Aperture<br />Interferometric Nulling Testbed (SAINT) primary mirror; 3) quantify performance of the SAINT closed-loop<br />fine pointing system; and 4) assemble, align and demonstrate a radial shear first order implementation of a<br />system known as the Phase-Occulation Nulling Coronagraph (PONC).</p>","benefits":"<p>The segmented aperture and pointing system components of this work are motivated to test the VNC as<br />a high-contrast imaging approach that functions with arbitrary telescope apertures. Future space telescopes<br />will likely leverage the significant investment developing segmented mirror technology in order to improve<br />telescope resolution and sensitivity while working within the confines of launch vehicle limitations. If we<br />are successful with our demonstration, then this expertise in<br />interferometry, and more specifically, interferometric nulling coronagraphy can be leveraged to motivate the development of<br />increasingly larger arrays of segmented telescopes beyond JWST, and the LUVOIR concept.</p>","releaseStatus":"Released","status":"Completed","viewCount":664,"destinationType":["Outside_the_Solar_System"],"lastUpdated":"10/10/18","favorited":false,"detailedFunding":false,"projectContacts":[{"contactId":326112,"canUserEdit":false,"firstName":"Megan","lastName":"Eckart","fullName":"Megan E Eckart","fullNameInverted":"Eckart, Megan E","middleInitial":"E","email":"megan.e.eckart@nasa.gov","receiveEmail":"Subscribed_User","projectContactRole":"Project_Manager","projectContactId":8329,"projectId":93238,"programContactRolePretty":"","projectContactRolePretty":"Project Manager"},{"contactId":468261,"canUserEdit":false,"firstName":"Timothy","lastName":"Beach","fullName":"Timothy D Beach","fullNameInverted":"Beach, Timothy D","middleInitial":"D","email":"timothy.d.beach@nasa.gov","receiveEmail":"Subscribed_User","projectContactRole":"Project_Manager","projectContactId":8359,"projectId":93238,"programContactRolePretty":"","projectContactRolePretty":"Project Manager"},{"contactId":364516,"canUserEdit":false,"firstName":"Patricia","lastName":"Boyd","fullName":"Patricia T Boyd","fullNameInverted":"Boyd, Patricia T","middleInitial":"T","email":"patricia.t.boyd@nasa.gov","receiveEmail":"Subscribed_User","projectContactRole":"Principal_Investigator","projectContactId":17169,"projectId":93238,"programContactRolePretty":"","projectContactRolePretty":"Principal Investigator"},{"contactId":52104,"canUserEdit":false,"firstName":"Brian","lastName":"Hicks","fullName":"Brian A Hicks","fullNameInverted":"Hicks, Brian A","middleInitial":"A","receiveEmail":"Subscribed_User","projectContactRole":"Co_Investigator","projectContactId":19803,"projectId":93238,"programContactRolePretty":"","projectContactRolePretty":"Co-Investigator"},{"contactId":458459,"canUserEdit":false,"firstName":"Teresa","lastName":"Sheets","fullName":"Teresa B Sheets","fullNameInverted":"Sheets, Teresa B","middleInitial":"B","email":"teresa.b.sheets@nasa.gov","receiveEmail":"Subscribed_User","projectContactRole":"Co_Investigator","projectContactId":45131,"projectId":93238,"programContactRolePretty":"","projectContactRolePretty":"Co-Investigator"},{"contactId":478183,"canUserEdit":false,"firstName":"Tyler","lastName":"Groff","fullName":"Tyler D Groff","fullNameInverted":"Groff, Tyler D","middleInitial":"D","email":"tyler.d.groff@nasa.gov","receiveEmail":"Subscribed_User","projectContactRole":"Co_Investigator","projectContactId":29872,"projectId":93238,"programContactRolePretty":"","projectContactRolePretty":"Co-Investigator"}],"programContacts":[{"contactId":43382,"canUserEdit":false,"firstName":"Bhanu","lastName":"Sood","fullName":"Bhanu P Sood","fullNameInverted":"Sood, Bhanu P","middleInitial":"P","email":"bhanu.sood@nasa.gov","receiveEmail":"Subscribed_User","programContactRole":"Program_Manager","programContactId":395,"programId":153,"programContactRolePretty":"Program Manager","projectContactRolePretty":""}],"leadOrganization":{"organizationId":4947,"organizationName":"Goddard Space Flight Center","acronym":"GSFC","organizationType":"NASA_Center","city":"Greenbelt","stateTerritoryId":3,"stateTerritory":{"abbreviation":"MD","country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"name":"Maryland","stateTerritoryId":3,"isTerritory":false},"country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"zipCode":"20771","projectId":93238,"projectOrganizationId":9671,"organizationRole":"Lead_Organization","canUserEdit":false,"locationEdit":false,"organizationRolePretty":"Lead Organization","organizationTypePretty":"NASA Center"},"otherOrganizations":[{"organizationId":4947,"organizationName":"Goddard Space Flight Center","acronym":"GSFC","organizationType":"NASA_Center","city":"Greenbelt","stateTerritoryId":3,"stateTerritory":{"abbreviation":"MD","country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"name":"Maryland","stateTerritoryId":3,"isTerritory":false},"country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"zipCode":"20771","projectId":93238,"projectOrganizationId":9671,"organizationRole":"Lead_Organization","canUserEdit":false,"locationEdit":false,"organizationRolePretty":"Lead Organization","organizationTypePretty":"NASA Center"}],"primaryTx":{"taxonomyNodeId":11224,"taxonomyRootId":8817,"parentNodeId":11223,"code":"TX08.2.1","title":"Mirror Systems","description":"Mirror systems development aims to increase sensitivity and resolution, such as improved resolution of X-ray grazing incidence optics and reduced areal costs for aperture systems >10 m in diameter.","exampleTechnologies":"Ground metrology and systems; 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