1750 Eckert

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

Key facts

Discovered by

K. Reinmuth

Discovery site

Heidelberg Obs.

Discovery date

15 July 1950

Named after

Wallace Eckert , (astronomer)

Alternative designations

1950 NA 1 · 1950 OA

Minor planet category

Mars-crosser · Hungaria

Observation arc

66.89 yr (24,431 days)

Aphelion

2.2597 AU

Perihelion

1.5932 AU

Semi major axis

1.9265 AU

Orbital period sidereal

2.67 yr (977 days)

Mean anomaly

346.00 °

Inclination

19.084°

Longitude of ascending node

273.76°

Argument of perihelion

109.00°

Earth moid

0.6934 AU

Dimensions

6.95 ± 0.21 km , 6.97 km (calculated)

Synodic rotation period

4.49 ± 0.01 h (dated) , 375 ± 5 h , 377.5 ± 0.5 h

via Wikipedia infobox