Skip to content
EntityQ2622810· pop 18

14120 Espenak

Sign in to save

Also known as Espenak

asteroid

Picture of the Day · NASA

Pathfinder on Mars

Pathfinder on Mars

2026-07-04

On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.

via NASA APOD

Wikidata facts

Instance of
asteroid
Named after
Fred Espenak
Followed by
14121 Stüwe
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
13.2
Orbital period
1343.887885579288
Show 17 more facts
site of astronomical discovery
Anderson Mesa Station
provisional designation
2000 AG237
time of discovery or invention
1998-08-27
orbital eccentricity
0.0889907724083236
orbital inclination
5.98496778678587
periapsis
2.171196769118459
apoapsis
2.595377933660757
semi-major axis of an orbit
2.383287351389608
mean anomaly
75.6438195374444
longitude of ascending node
222.8437578415081
argument of periapsis
212.9545578615106
absolute magnitude
13.6
albedo
0.0368
rotation period
7.243
time of periapsis
2460718.119964735
Sources (3)

via Wikidata · CC0