Skip to content
EntityQ524453· pop 20

8401 Assirelli

Sign in to save

Also known as Assirelli

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
(8402) 1994 GH9
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1587.430800205932
Show 16 more facts
provisional designation
1994 DA
time of discovery or invention
1994-02-16
site of astronomical discovery
Astronomical Observatory of Farra d'Isonzo
orbital eccentricity
0.06935050263246202
absolute magnitude
14.77
orbital inclination
9.192506704730365
periapsis
2.478470367472772
apoapsis
2.847853612679681
semi-major axis of an orbit
2.663161990076226
mean anomaly
42.66672827538869
longitude of ascending node
161.7569015514197
argument of periapsis
55.78783083605323
rotation period
3.50396
time of periapsis
2460812.3597816434
Sources (2)

via Wikidata · CC0