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(39720) 1996 VG4

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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

(39720) 1996 VG4

Orbit class
Main-belt
Semi-major axis
2.398 AU
Eccentricity
0.174
Inclination
3.100 °
Absolute magnitude
15.480 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
(39721) 1996 VU7
Parent body
Sun
Minor-planet group
asteroid belt
Orbital period
1356.96810196868
Show 16 more facts
time of discovery or invention
1996-11-08
site of astronomical discovery
Xinglong Station
provisional designation
2000 YV115
albedo
0.088
orbital eccentricity
0.1736205484733136
orbital inclination
3.100184446244525
periapsis
1.982258631629319
apoapsis
2.815195196553885
semi-major axis of an orbit
2.398726914091602
mean anomaly
317.5521863932748
longitude of ascending node
75.21637796531337
argument of periapsis
320.5244899424613
absolute magnitude
15.49
time of periapsis
2461160.500914063
Sources (3)

via Wikidata · CC0

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via Wikidata sitelinks · CC0