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- Explorer_19 abstract "Explorer 19 was an American satellite launched on December 19, 1963 as part of NASA's Explorers program. It was the third of six identical Explorer satellites launched to study air density and composition, and the second to reach orbit. It was identical to Explorer 9.The second of six identical air density research satellites to be launched, Explorer 9 was the first to successfully reach orbit. It was still operational when the next satellite, Explorer 19, was launched, allowing simultaneous readings to be taken and compared. The spacecraft consisted of alternating layers of aluminium foil and Mylar polyester film. Uniformly distributed over the aluminium surface were 5.1 cm-diameter dots of white paint for thermal control. The sphere was packed in a tube 21.6 cm in diameter and 48.3 cm long and mounted in the nose of the fourth stage of the launch vehicle. Upon separation of the fourth stage, the sphere was inflated by a nitrogen gas bottle, and a separation spring ejected it out into its own orbit. The two hemispheres of aluminium foil were separated with a gap of Mylar at the spacecraft's equator and served as the antenna. A 136 MHz, 15 mW beacon was carried for tracking purposes, but the beacon failed on the first orbit and the SAO Baker-Nunn camera network had to be relied upon for tracking. Power was supplied by solar cells and rechargeable batteriesExplorer 19's launch vehicle, a Scout X-4, placed it into a slightly lower than planned orbit.".
- Explorer_19 wikiPageID "49062577".
- Explorer_19 wikiPageLength "2116".
- Explorer_19 wikiPageOutDegree "14".
- Explorer_19 wikiPageRevisionID "699258966".
- Explorer_19 wikiPageWikiLink Aluminium_foil.
- Explorer_19 wikiPageWikiLink BoPET.
- Explorer_19 wikiPageWikiLink Category:Explorers_program_(NASA).
- Explorer_19 wikiPageWikiLink Category:Passive_satellites.
- Explorer_19 wikiPageWikiLink Density_of_air.
- Explorer_19 wikiPageWikiLink Explorer_9.
- Explorer_19 wikiPageWikiLink Explorers_program.
- Explorer_19 wikiPageWikiLink NASA.
- Explorer_19 wikiPageWikiLink Polyester.
- Explorer_19 wikiPageWikiLink Satellite.
- Explorer_19 wikiPageWikiLink Schmidt_camera.
- Explorer_19 wikiPageWikiLink Scout_X-4.
- Explorer_19 wikiPageWikiLink Solar_cell.
- Explorer_19 wikiPageWikiLink United_States.
- Explorer_19 wikiPageWikiLinkText "Explorer 19".
- Explorer_19 wikiPageUsesTemplate Template:Explorer_program.
- Explorer_19 wikiPageUsesTemplate Template:Reflist.
- Explorer_19 wikiPageUsesTemplate Template:US-spacecraft-stub.
- Explorer_19 subject Category:Explorers_program_(NASA).
- Explorer_19 subject Category:Passive_satellites.
- Explorer_19 hypernym Satellite.
- Explorer_19 type ArtificialSatellite.
- Explorer_19 comment "Explorer 19 was an American satellite launched on December 19, 1963 as part of NASA's Explorers program. It was the third of six identical Explorer satellites launched to study air density and composition, and the second to reach orbit. It was identical to Explorer 9.The second of six identical air density research satellites to be launched, Explorer 9 was the first to successfully reach orbit.".
- Explorer_19 label "Explorer 19".
- Explorer_19 sameAs Q49877.
- Explorer_19 sameAs Explorer_19.
- Explorer_19 sameAs Explorer_19.
- Explorer_19 sameAs Explorer_19.
- Explorer_19 sameAs Explorer_19.
- Explorer_19 sameAs Q49877.
- Explorer_19 wasDerivedFrom Explorer_19?oldid=699258966.
- Explorer_19 isPrimaryTopicOf Explorer_19.