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EntityQ1085669· pop 18

16053 Brennan

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Also known as Brennan, (16053) Brennan

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

(16053) Brennan

Orbit class
Main-belt
Semi-major axis
2.846 AU
Eccentricity
0.016
Inclination
1.073 °
Absolute magnitude
14.200 H

via Minor Planet Center

Wikidata facts

Instance of
asteroid
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
4.178
Orbital period
1751.968270710488
Show 15 more facts
provisional designation
1999 JA40
time of discovery or invention
1999-05-10
orbital eccentricity
0.01502472344132147
orbital inclination
1.073408626447118
periapsis
2.801413406657928
apoapsis
2.886878418179643
semi-major axis of an orbit
2.844145912418786
mean anomaly
312.4564535404361
longitude of ascending node
246.9689446129789
argument of periapsis
218.9388178627971
absolute magnitude
14.2
albedo
0.306
time of periapsis
2461231.8744024285
Sources (2)

via Wikidata · CC0