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EntityQ647272· pop 15

(5486) 1991 UT2

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main-belt minor planet

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

Small body data

(5486) 1991 UT2

Orbit class
Main-belt
Semi-major axis
2.605 AU
Eccentricity
0.061
Inclination
10.182 °
Absolute magnitude
12.980 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
(5487) 1991 UM4
Follows
5485 Kaula
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
7.174
Orbital period
1535.480458741164
Show 17 more facts
discoverer or inventor
Hiroshi Kaneda
provisional designation
1977 KQ1
time of discovery or invention
1991-10-31
orbital eccentricity
0.06151354426659267
orbital inclination
10.18937674056493
periapsis
2.444510575843039
apoapsis
2.764963809022122
semi-major axis of an orbit
2.604737192432581
mean anomaly
157.3207644861118
longitude of ascending node
63.69734148079945
argument of periapsis
222.269940896774
absolute magnitude
12.99
site of astronomical discovery
Kushiro
albedo
0.455
rotation period
17.9
time of periapsis
2460329.491778826
Sources (2)

via Wikidata · CC0