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EntityQ250273· pop 29

Also known as Shimoyama

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
Shimoyama
Followed by
Q670244
Follows
Q150328
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
29.663
Orbital period
1876.969149328888
Show 17 more facts
discoverer or inventor
Toshimasa Furuta
provisional designation
1981 WA
time of discovery or invention
1981-11-18
site of astronomical discovery
Tōkai-shi
orbital eccentricity
0.1532854221084924
orbital inclination
13.37372082492732
periapsis
2.521406349329577
apoapsis
3.434334617380584
semi-major axis of an orbit
2.97787048335508
mean anomaly
215.2264505016658
longitude of ascending node
233.1895824927402
argument of periapsis
153.355326018727
absolute magnitude
11.98
albedo
0.035
rotation period
694.117
time of periapsis
2461755.3207945754
Sources (3)

via Wikidata · CC0

~2 min read

Encyclopedic overview

The following is a partial list of minor planets, running from minor-planet number 2001 through 3000, inclusive. The primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list information is also provided by the MPC, unless otherwise specified from Lowell Observatory. A detailed description of the table's columns and additional sources are given on the main page including a complete list of every page in this series, and a statistical break-up on the dynamical classification of minor planets.

Also see the summary list of all named bodies in numerical and alphabetical order, and the corresponding naming citations for the number range of this particular list. New namings may only be added to this list after official publication, as the preannouncement of names is condemned by the Working Group for Small Bodies Nomenclature of the International Astronomical Union.

Excerpted from Wikipedia’s “Q250273” article, available under the CC BY-SA 4.0 licence.