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12975 Efremov

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Also known as Efremov

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
12976 Kalinenkov
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
6.749
Orbital period
1519.530562821215
Show 17 more facts
discoverer or inventor
Nikolai Chernykh
site of astronomical discovery
Crimean Astrophysical Observatory
provisional designation
1998 RM59
time of discovery or invention
1973-09-28
orbital eccentricity
0.1422029527109469
orbital inclination
15.1296225208365
periapsis
2.218836094851957
apoapsis
2.954499723601315
semi-major axis of an orbit
2.586667909226636
mean anomaly
158.3981098396943
longitude of ascending node
186.2558789781307
argument of periapsis
217.0039460892993
absolute magnitude
13.37
Commons category
12975 Efremov
albedo
0.169
time of periapsis
2460331.9145305706
Sources (2)

via Wikidata · CC0