Skip to content
EntityQ525761· pop 27

3444 Stepanian

Sign in to save

Also known as Stepanian

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
3445 Pinson
Follows
Q151577
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
6.425
Orbital period
1493.062383049486
Image
003444-asteroid shape model (3444) Stepanian.png
Show 18 more facts
discoverer or inventor
Nikolai Chernykh
site of astronomical discovery
Crimean Astrophysical Observatory
provisional designation
1984 QP
time of discovery or invention
1980-09-07
orbital eccentricity
0.261194234065487
orbital inclination
6.463322758043376
periapsis
1.888788344612903
apoapsis
3.224296668262656
semi-major axis of an orbit
2.55654250643778
mean anomaly
339.5304217561392
longitude of ascending node
342.4686652251605
argument of periapsis
83.99927812830123
absolute magnitude
12.8
Commons category
3444 Stepanian
albedo
0.475
rotation period
14.47
time of periapsis
2461085.395436869
Sources (3)

via Wikidata · CC0