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(27722) 1990 OB2

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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

(27722) 1990 OB2

Orbit class
Main-belt
Semi-major axis
3.016 AU
Eccentricity
0.347
Inclination
11.768 °
Absolute magnitude
13.550 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
(27723) 1990 QA
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
7.146
Orbital period
1912.193409320606
Show 17 more facts
site of astronomical discovery
Palomar Observatory
discoverer or inventor
Henry E. Holt
time of discovery or invention
1990-07-29
provisional designation
1990 OB2
albedo
0.162
orbital eccentricity
0.3468221571894354
orbital inclination
11.76919661908633
periapsis
1.969338497955278
apoapsis
4.060683860064077
semi-major axis of an orbit
3.015011179009678
mean anomaly
242.2784859597941
longitude of ascending node
349.1902136770506
argument of periapsis
359.8351864104179
absolute magnitude
13.57
rotation period
14.85
time of periapsis
2461625.795286897
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0