Explorer 20 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Explorer 20" in English language version.

refsWebsite

Global rank English rank

75^th place

83^rd place

1^st place

2,056^th place

1,541^st place

low place

1,181^st place

736^th place

8,665^th place

6,411^th place

astronautix.com (Global: 2,056^th place; English: 1,541^st place)

"IE". Encyclopedia Astronautica. Mark Wade. Archived from the original on 21 June 2002. Retrieved 9 June 2018.

"Explorer 20 Launch Succeeds". Aviation Week and Space Technology. McGraw Hill Publishing Company. 31 August 1964. Retrieved 28 August 2019.

"Display: Explorer 20 (IE-A) 1964-051A". NASA. 28 October 2021. Retrieved 7 November 2021. This article incorporates text from this source, which is in the public domain.
"Experiment: Cosmic Noise". NASA. 28 October 2021. Retrieved 7 November 2021. This article incorporates text from this source, which is in the public domain.
"Experiment: Fixed-Frequency Ionosonde". NASA. 28 October 2021. Retrieved 7 November 2021. This article incorporates text from this source, which is in the public domain.
"Experiment: Spherical Ion-Mass Spectrometer". NASA. 28 October 2021. Retrieved 7 November 2021. This article incorporates text from this source, which is in the public domain.

McDowell, Jonathan (21 July 2021). "Launch Log". Jonathan's Space Report. Retrieved 7 November 2021.

"IE". Encyclopedia Astronautica. Mark Wade. Archived from the original on 21 June 2002. Retrieved 9 June 2018.