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4927 O'Connell

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EntityQ918205· pop 25

4927 O'Connell

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Also known as O'Connell

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

Wikidata facts

Instance of
asteroid
Named after
Daniel O'Connell
Followed by
4928 Vermeer
Parent body
Sun
Minor-planet group
asteroid belt
Diameter
7.04
Orbital period
1793.682244134842
Show 17 more facts
discoverer or inventor
Zdeňka Vávrová
site of astronomical discovery
Kleť Observatory
provisional designation
1987 YC4
time of discovery or invention
1982-10-21
orbital eccentricity
0.08383025288381292
orbital inclination
1.162221565786384
periapsis
2.646919102798321
apoapsis
3.131309464844271
semi-major axis of an orbit
2.889114283821296
mean anomaly
305.8483466743428
longitude of ascending node
328.9316147381381
argument of periapsis
39.95058056711647
absolute magnitude
13.46
albedo
0.205
rotation period
9.78
time of periapsis
2461270.3079418354
Sources (2)

via Wikidata · CC0

Gallery (2)