Home›1959 in the United States›Explorer 7🌐EnglishEnglishDeutschFrançaisItalianoNederlandsPolskiPortuguêsTiếng ViệtРусский日本語EntityQ2509028· pop 15· linked from 164 articlesExplorer 7Also known as NASA S-1a, S-1a, Explorer VII1959 research satelliteWikidata factsDiameter76Mass41.5Orbital period101.38ImageInstalling Explorer VII.jpgHeight76Show 6 more factsUTC date of spacecraft launch1959-10-13Commons categoryExplorer 7periapsis573apoapsis1073orbital inclination50.27orbital eccentricity0.034692Sources (8)Available in 14 languagesFrançaisDeutsch日本語РусскийPortuguêsItalianoCzechFinnishGalicianLuxembourgishPolskiConnectionsExplorers ProgramEntityUniversity of IowaEntityCategories1959 in the United StatesEarth observation satellitesExplorers ProgramSatellites orbiting EarthSource attributionSpacecraft launched in 1959