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(13040) 1990 OB4

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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

Wikidata facts

Instance of
asteroid
Followed by
(13041) 1990 OS4
Follows
Q2616177
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.56
Orbital period
1574.127140186746
Show 17 more facts
site of astronomical discovery
Palomar Observatory
discoverer or inventor
Henry E. Holt
provisional designation
1990 OB4
time of discovery or invention
1990-07-29
albedo
0.249
orbital eccentricity
0.2449109832689757
orbital inclination
11.49436712790374
periapsis
1.999673416605664
apoapsis
3.296850231063767
semi-major axis of an orbit
2.648261823834716
mean anomaly
48.48132272792803
longitude of ascending node
271.37588796789
argument of periapsis
84.77424081570649
absolute magnitude
13.84
rotation period
55.1035
time of periapsis
2460788.511761394
Sources (3)

via Wikidata · CC0