1877 Marsden

Picture of the Day · NASA

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

1877 Marsden (1971 FC)

Orbit class

Outer Main-belt Asteroid

Diameter

35.642 km

Albedo

0.073

Rotation period

14.412 h

Absolute magnitude

10.900 H

Earth MOID

2.170 AU

via NASA/JPL Small-Body Database

Wikidata facts

Instance of

asteroid

Named after

Brian G. Marsden

Followed by

1878 Hughes

Follows

1876 Napolitania

Parent body

Sun

Diameter

35.642

Orbital period

2865.781022551379

via Wikidata · CC0