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EntityQ152870· pop 27

Also known as Semmelweis

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
Ignaz Semmelweis
Followed by
Q152875
Follows
Q152866
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
16.82
Orbital period
1916.892609340288
Show 17 more facts
discoverer or inventor
Zdeňka Vávrová
site of astronomical discovery
Kleť Observatory
provisional designation
1986 TQ2
time of discovery or invention
1980-08-06
orbital eccentricity
0.0901551126353025
semi-major axis of an orbit
3.019948735303731
mean anomaly
242.9615519917476
longitude of ascending node
171.39103191
argument of periapsis
120.7069215714985
absolute magnitude
11.72
orbital inclination
10.34947459891476
periapsis
2.747684916919584
apoapsis
3.292212553687878
albedo
0.172
rotation period
5.3
time of periapsis
2461623.6948222104
Sources (2)

via Wikidata · CC0