+ 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. + NASA Center + Publication Year + Availability Options + Item/Media Type Selected Navigations: Author > Kopp, E. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 12 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order Prev 1 2  D-region ion composition during the winter anomaly campaign on January 8, 1977 Author(s): Meister, J.; Eberhardt, P.; Herrmann, U.; Kopp, E.; Hidalgo, M. A.; Sechrist, C. F., Jr. Abstract: No Abstract Available NASA Center: NASA (non Center Specific) Publication Year: 1977 Added to NTRS: 2004-11-03 Accession Number: 77A45809; Document ID: 19770062957 Positive ion composition and derived particle heating in the lower auroral ionosphere Author(s): Kopp, E.; Andre, L.; Smith, L. G. Abstract: Two E11a rocket flights in salvo B (launched on November 16, 1980) and A2 (launched on November 30, 1980), which provide positive ion composition, total and partial ion density, and electron density in the altitude range ... NASA Center: NASA (non Center Specific) Publication Year: 1985 Added to NTRS: 2004-11-03 Accession Number: 85A30571; Document ID: 19850048420 Prev 1 2  + 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