702 Alauda

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

J. Helffrich

Discovery site

Heidelberg Obs.

Discovery date

16 July 1910

Pronunciation

/ ə ˈ l ɔː d ə /

Named after

Alauda (genus of Birds)

Alternative designations

1910 KQ

Minor planet category

main-belt · (outer) , Alauda

Adjectives

Alaudian

Observation arc

106.89 yr (39,040 days)

Aphelion

3.2533 AU

Perihelion

3.1372 AU

Semi major axis

3.1953 AU

Orbital period sidereal

5.71 yr (2,086 days)

Mean anomaly

311.58 °

Mean motion

0° 10 21.36 / day

Inclination

20.589°

Longitude of ascending node

289.77°

Argument of perihelion

349.49°

via Wikipedia infobox