Explorer 9 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Explorer 9" in English language version.

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3nasa.gov

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3harvard.edu

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2web.archive.org

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2planet4589.org

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2u-strasbg.fr

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1astronautix.com

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1skyrocket.de

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1doi.org

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1handle.net

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1worldcat.org

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1si.edu

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astronautix.com

Wade, Mark. "S-56". Encyclopedia Astronautica. Archived from the original on 28 October 2002. Retrieved 17 June 2010.

doi.org

Jacchia, Luigi G.; Slowey, Jack (1963). "Accurate drag determinations for eight artificial satellites: atmospheric densities and temperatures". Smithsonian Contributions to Astrophysics. 8 (1): 1–99. doi:10.5479/si.00810231.8-1.1. hdl:10088/6623. ISSN 0081-0231.

handle.net

hdl.handle.net

Jacchia, Luigi G.; Slowey, Jack (1963). "Accurate drag determinations for eight artificial satellites: atmospheric densities and temperatures". Smithsonian Contributions to Astrophysics. 8 (1): 1–99. doi:10.5479/si.00810231.8-1.1. hdl:10088/6623. ISSN 0081-0231.

harvard.edu

ui.adsabs.harvard.edu

Jacchia, L. G.; Slowey, J. (1962). "Preliminary Analysis of the Atmospheric Drag of the Twelve-Foot Balloon Satellite (1961 δ1)". Sao Special Report. 84. Bibcode:1962SAOSR..84.....J. Retrieved 21 December 2018.
Roemer, M. (1966). "Atmospheric Densities and Temperatures from Precisely Reduced Observations of the Explorer IX Satellite". Sao Special Report. 199. Bibcode:1966SAOSR.199.....R. Retrieved 21 December 2018.

articles.adsabs.harvard.edu

"Analysis of the Atmospheric Drag of the Explorer IX satellite from Precisely Reduced Photographic Observations". Retrieved 21 December 2018.

nasa.gov

nssdc.gsfc.nasa.gov

"Display: Explorer-9 1961-004A". NASA. 28 October 2021. Retrieved 3 November 2021. This article incorporates text from this source, which is in the public domain.
"Experiment: Satellite Drag Atmospheric Density". NASA. 28 October 2021. Retrieved 3 November 2021. This article incorporates text from this source, which is in the public domain.

history.nasa.gov

Smith, Woody. "Explorer Spacecraft Series". NASA. Retrieved 17 June 2010. This article incorporates text from this source, which is in the public domain.

planet4589.org

McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Report. Retrieved 17 June 2010.
McDowell, Jonathan (21 July 2021). "Launch Log". Jonathan's Space Report. Retrieved 3 November 2021.

si.edu

airandspace.si.edu

"Satellite, Explorer 9, Balloon Replica". National Air and Space Museum. Archived from the original on 22 December 2018. Retrieved 21 December 2018.

skyrocket.de

space.skyrocket.de

Krebs, Gunter (8 April 2020). "AD A, B, C / (S-56) / Explorer S-56, 9, 19, 24, 39, 57". Gunter's Space Page. Retrieved 7 November 2021.

u-strasbg.fr

cdsads.u-strasbg.fr

Jacchia, L. G.; Slowey, J. (1962). "Preliminary Analysis of the Atmospheric Drag of the Twelve-Foot Balloon Satellite (1961 δ1)". Sao Special Report. 84. Bibcode:1962SAOSR..84.....J. Retrieved 21 December 2018.
Roemer, M. (1966). "Atmospheric Densities and Temperatures from Precisely Reduced Observations of the Explorer IX Satellite". Sao Special Report. 199. Bibcode:1966SAOSR.199.....R. Retrieved 21 December 2018.

web.archive.org

Wade, Mark. "S-56". Encyclopedia Astronautica. Archived from the original on 28 October 2002. Retrieved 17 June 2010.
"Satellite, Explorer 9, Balloon Replica". National Air and Space Museum. Archived from the original on 22 December 2018. Retrieved 21 December 2018.

worldcat.org

Jacchia, Luigi G.; Slowey, Jack (1963). "Accurate drag determinations for eight artificial satellites: atmospheric densities and temperatures". Smithsonian Contributions to Astrophysics. 8 (1): 1–99. doi:10.5479/si.00810231.8-1.1. hdl:10088/6623. ISSN 0081-0231.