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5963 Terryalfriend

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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

(5963) Terryalfriend

Orbit class
Main-belt
Semi-major axis
2.845 AU
Eccentricity
0.054
Inclination
1.700 °
Absolute magnitude
12.940 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Followed by
5964 Johnjunkins
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
10.102
Orbital period
1754.990883763872
Show 16 more facts
discoverer or inventor
Henry E. Holt
site of astronomical discovery
Palomar Observatory
provisional designation
1990 SM29
time of discovery or invention
1990-08-24
orbital inclination
1.69919833125615
periapsis
2.692813743427929
apoapsis
3.002018749715043
semi-major axis of an orbit
2.847416246571486
mean anomaly
55.49524695717469
longitude of ascending node
0.2209180515207194
argument of periapsis
61.74430002082124
absolute magnitude
12.94
orbital eccentricity
0.05429571574922036
albedo
0.153
time of periapsis
2460729.962076383
Sources (2)

via Wikidata · CC0