Skip to content
EntityQ523737· pop 14

21561 Masterman

Sign in to save

Also known as Masterman

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

Diameter
7.065
Orbital period
1606.000763262466
Show 14 more facts
provisional designation
1998 QR93
time of discovery or invention
1998-08-28
orbital eccentricity
0.1660159905642177
mean anomaly
67.03644133058081
longitude of ascending node
57.77451309761971
argument of periapsis
334.7156163659013
absolute magnitude
13.14
orbital inclination
13.94671779183338
periapsis
2.238322209652024
apoapsis
3.129459868487155
semi-major axis of an orbit
2.683891039069589
albedo
0.245
rotation period
171.96
time of periapsis
2460701.442844602
Sources (2)

via Wikidata · CC0

Connections

Categories