Discoverer 9 (English Wikipedia)

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

refsWebsite

Global rank English rank

5^th place

75^th place

83^rd place

1^st place

89^th place

147^th place

4,664^th place

3,842^nd place

low place

8,665^th place

6,411^th place

cia.gov

"Corona: America's First Satellite Program" (PDF). Central Intelligence Agency. 1995. Archived from the original (PDF) on June 12, 2007. Retrieved 25 January 2020.

"Discoverer 1". NASA Space Science Data Coordinated Archive. Retrieved 24 October 2020.

McDowell, Jonathan. "Launch Log". Jonathon's Space Report. Retrieved 7 November 2020.

"Corona: America's First Satellite Program" (PDF). Central Intelligence Agency. 1995. Archived from the original (PDF) on June 12, 2007. Retrieved 25 January 2020.

Day, Dwayne A.; Logsdon, John M.; Latell, Brian (1998). Eye in the Sky: The Story of the Corona Spy Satellites. Washington and London: Smithsonian Institution Press. ISBN 1-56098-830-4. OCLC 36783934.
Helen Gavaghan (1998). Something New Under the Sun Satellites and the Beginning of the Space Age. New York: Springer. p. 98. ISBN 978-1-4612-7218-2. OCLC 1159214844.