Skip to content
EntityQ5193183· pop 5

(21899) 1999 VU8

Sign in to save

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

Small body data

(21899) 1999 VU8

Orbit class
Main-belt
Semi-major axis
2.846 AU
Eccentricity
0.148
Inclination
13.944 °
Absolute magnitude
14.010 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
21900 Orus
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
5.393
Orbital period
1752.83109766391
Show 17 more facts
discoverer or inventor
Charles W. Juels
site of astronomical discovery
Fountain Hills Observatory
provisional designation
1999 VU8
time of discovery or invention
1999-11-08
albedo
0.221
orbital eccentricity
0.1479227861070848
orbital inclination
13.94506574044712
periapsis
2.424227537080307
apoapsis
3.265931752603437
argument of periapsis
233.8353469718672
absolute magnitude
14.02
semi-major axis of an orbit
2.845079644841872
mean anomaly
143.8099949795615
longitude of ascending node
140.7116439696325
rotation period
20.2235
time of periapsis
2460100.2926906804
Sources (3)

via Wikidata · CC0

Available in 5 languages

via Wikidata sitelinks · CC0