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EntityQ1061352· pop 23

Also known as Gyas, (5637) Gyas

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

Small body data

(5637) Gyas

Orbit class
Jupiter Trojan
Semi-major axis
5.203 AU
Eccentricity
0.122
Inclination
22.363 °
Absolute magnitude
11.650 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
5638 Deikoon
Parent body
Sun
Diameter
28.168
Orbital period
4331.854567921442
Show 16 more facts
discoverer or inventor
Eugene Merle Shoemaker
site of astronomical discovery
Palomar Observatory
provisional designation
1988 RF1
time of discovery or invention
1988-09-10
orbital eccentricity
0.1225493640920624
orbital inclination
22.36531186392745
periapsis
4.563236598041496
apoapsis
5.837887775911939
semi-major axis of an orbit
5.200562186976718
mean anomaly
84.99724326904614
longitude of ascending node
1.843292115488433
argument of periapsis
333.2135198893982
absolute magnitude
11.66
albedo
0.056
time of periapsis
2459977.734176345
Sources (3)

via Wikidata · CC0