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5964 Johnjunkins

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main-belt minor planet

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

5964 Johnjunkins (1990 QN4)

Orbit class
Main-belt Asteroid
Diameter
13.186 km
Albedo
0.086
Absolute magnitude
12.960 H
Earth MOID
1.120 AU

via NASA/JPL Small-Body Database

Wikidata facts

Instance of
asteroid
Followed by
5965 Meisel
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
13.186
Orbital period
1950.875021601879
Show 16 more facts
discoverer or inventor
Henry E. Holt
site of astronomical discovery
Palomar Observatory
provisional designation
A915 TH
time of discovery or invention
1990-08-23
orbital eccentricity
0.3085687362901374
orbital inclination
3.394952243767206
periapsis
2.112692838801114
apoapsis
3.998378354206553
semi-major axis of an orbit
3.055535596503833
mean anomaly
180.4532276060432
longitude of ascending node
173.0920808498247
argument of periapsis
211.5340828090672
absolute magnitude
12.96
albedo
0.086
time of periapsis
2461973.4814263126
Sources (2)

via Wikidata · CC0