Skip to content
EntityQ2214252· pop 10

21887 Dipippo

Sign in to save

Also known as Dipippo

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
21888 Ďurech
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
7.645
Orbital period
1876.462630153904
Show 16 more facts
site of astronomical discovery
Anderson Mesa Station
provisional designation
1999 UH42
time of discovery or invention
1999-10-20
orbital eccentricity
0.07296324244865422
absolute magnitude
13.71
orbital inclination
9.697870343495529
periapsis
2.760098725166181
apoapsis
3.194570715248769
semi-major axis of an orbit
2.977334720207475
mean anomaly
312.9095064690603
longitude of ascending node
208.2458143117088
argument of periapsis
287.0835831696089
albedo
0.145
time of periapsis
2461245.9543092954
Sources (2)

via Wikidata · CC0