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Explorer S-45 (satellite)

NASA satellite of the Explorer program

Field	Value
name	Explorer S-45
names_list	Explorer S-45
NASA S-45
image	S-45 1.jpg
image_caption	Explorer S-45 satellite before launch
image_size	300px
mission_type	Ionospheric research
operator	NASA
COSPAR_ID	EXS-451
mission_duration	Failed to orbit
spacecraft	Explorer S-45
spacecraft_type	Science Explorer
spacecraft_bus	S-45
manufacturer	Goddard Space Flight Center
launch_mass	33.6 kg
power	Solar cells and batteries
launch_date	25 February 1961,
00:13:16 GMT
launch_rocket	Juno II (AM-19F)
launch_site	Cape Canaveral, LC-26B
launch_contractor	Army Ballistic Missile Agency
destroyed	Failed to orbit
orbit_reference	Geocentric orbit (planned)
orbit_regime	Highly elliptical orbit
orbit_periapsis	221 km
orbit_apoapsis	181100 km
orbit_inclination	33.0°
orbit_period	5013.90 minutes
apsis	gee
instruments	Beacon
programme	Explorer program
previous_mission	Explorer 9
next_mission	Explorer 10

NASA S-45

00:13:16 GMT

Explorer S-45 was a NASA satellite, which was lost in a launch failure in February 1961. The satellite was intended to operate in a highly elliptical orbit, from which it was to have provided data on the shape of the ionosphere, and on the Earth's magnetic field. It was part of the Explorer program, and would have been designated Explorer 10 had it reached orbit. A second identical satellite, Explorer S-45A, also failed to achieve orbit when it was launched.

Launch

Explorer S-45 was launched aboard a Juno II launch vehicle, serial number AM-19F. The launch took place from Launch Complex 26B at the Cape Canaveral Air Force Station (CCAFS) at 00:13:16 GMT on 25 February 1961. The launch vehicle malfunctioned after the second stage separated, and contact with the payload was lost. The third stages subsequently failed to ignite, resulting in the satellite failing to achieve orbit.

References

(28 October 2021). "Explorer S-45". NASA.
Wade, Mark. "P-14". Encyclopedia Astronautica.
McDowell, Jonathan. (21 July 2021). "Launch Log". Jonathan's Space Report.
(8 April 2020). "S-45 (Explorer (10), (12))". Gunter's Space Page.
"Explorer Program". NASA / JPL.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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