+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + Publication Year + Subject + Availability Options + Item/Media Type Selected Navigations: Author > Sobeck, Charles K. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 4 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order Performance considerations for the astrometric telescope facility on the phase 1 space station Author(s): Nishioka, Kenji; Gatewood, George D.; Macsy, Alfred C.; Sobeck, Charles K.; Sperans, Joel Abstract: The Astrometric Telescope Facility (ATF) is an optical telescope facility of extreme astrometric precision whose principle scientific purpose is the detection and study of planetary systems about nearby stars. With the ... NASA Center: Ames Research Center Publication Year: 1987 Added to NTRS: 2005-08-25 Accession Number: 88N14898; Document ID: 19880005516; Report Number: A-88021, NAS 1.15:100040, NASA-TM-100040 Arcjet exploratory tests of ARC optical window design for the AFE vehicle Author(s): Whiting, Ellis E.; Terrazas-Salinas, Imelda; Craig, Roger A.; Sobeck, Charles K.; Sarver, George L., III; Salerno, Louis J.; Love, Wendell; Maa, Scott; Covington, AL Abstract: Tests were made in the 20 MW arc jet facility at the NASA ARC to determine the suitability of sapphire and fused silica as window materials for the Aeroassist Flight Experiment (AFE) entry vehicle. Twenty nine tests were ... NASA Center: Ames Research Center Publication Year: 1991 Added to NTRS: 2005-08-25 Accession Number: 94N10930; Document ID: 19940006458; Report Number: AFE-9004-003, NAS 1.26:192655, NASA-CR-192655 Performance considerations for the astrometric Telescope Facility on the Phase I Space Station Author(s): Nishioka, Kenji; Mascy, Alfred C.; Sobeck, Charles K.; Sperans, Joel; Gatewood, George D. Abstract: The Astrometric Telescope Facility (ATF) is an optical telescope facility of extreme astrometric precision whose principal scientific purpose is the detection and study of planetary systems about nearby stars. With the ... NASA Center: Ames Research Center Publication Year: 1988 Added to NTRS: 2004-11-03 Accession Number: 88A42539; Document ID: 19880055312 Conceptual design considerations for the Astrometric Telescope Facility Author(s): Dyer, John W.; Nishioka, K.; Sobeck, Charles K.; Gatewood, George D.; Levy, Eugene H. Abstract: The system of an astrometric telescope on the Space Station and its support by the Station are described and its feasibility demonstrated. The conceptual design shows that such a facility provides a basis for the study of ... NASA Center: Ames Research Center Publication Year: 1991 Added to NTRS: 2004-11-03 Accession Number: 91A45269; Document ID: 19910060646 + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007