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EntityQ782039· pop 28

Also known as Grietje

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
Followed by
Q762616
Follows
Q844902
Parent body
Sun
Diameter
2.457
Orbital period
993.9935111384559
Show 18 more facts
discoverer or inventor
Tom Gehrels
site of astronomical discovery
Palomar Observatory
provisional designation
1973 SH
time of discovery or invention
1973-09-29
asteroid family
Hungaria family
orbital eccentricity
0.08403174517793649
orbital inclination
24.42084486408488
periapsis
1.78540674298437
apoapsis
2.112996359055895
semi-major axis of an orbit
1.949201551020132
mean anomaly
88.71028573539189
longitude of ascending node
200.0455333253609
argument of periapsis
141.8732707741668
absolute magnitude
15.22
albedo
0.168
rotation period
8.91
time of periapsis
2460755.5626433548
Sources (2)

via Wikidata · CC0