
Image by Hans on Pixabay · Pixabay License
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
- E. Bowell
- Discovery site
- Anderson Mesa Stn.
- Discovery date
- 4 September 1983
- Named after
- Hans Scholl , (German astronomer)
- Alternative designations
- 1983 RE 2 · 1968 UB 3 , 1977 UK · 1978 EY 1
- Minor planet category
- main-belt · ( outer ) , Hilda
- Observation arc
- 48.53 yr (17,727 days)
- Aphelion
- 5.0276 AU
- Perihelion
- 2.8597 AU
- Semi major axis
- 3.9436 AU
- Orbital period sidereal
- 7.83 yr (2,861 days)
- Mean anomaly
- 79.809 °
- Mean motion
- 0° 7 33.24 / day
- Inclination
- 5.2330°
- Longitude of ascending node
- 121.24°
- Argument of perihelion
- 285.08°
- Jupiter moid
- 0.5192 AU
- Dimensions
- 32.783 ± 0.319 km , 34.11 ± 1.9 km , 34.15 km (derived) , 35.70 ± 0.77 km , 45.60 ± 15.37 km
via Wikipedia infobox
Wikidata facts
- Diameter
- 32.783
- Orbital period
- 2875.828351487546
Show 15 more facts
- provisional designation
- 1983 RE2
- time of discovery or invention
- 1983-09-04
- orbital eccentricity
- 0.271350109177182
- orbital inclination
- 5.229051285057394
- periapsis
- 2.883778680826053
- apoapsis
- 5.031624085705855
- semi-major axis of an orbit
- 3.957701383265954
- mean anomaly
- 97.4106040288987
- longitude of ascending node
- 120.9656355141037
- argument of periapsis
- 283.8295475941724
- absolute magnitude
- 11.16
- albedo
- 0.054
- rotation period
- 4.359
- time of periapsis
- 2460222.343953328
- Commons category
- 2959 Scholl
Sources (2)
via Wikidata · CC0
~3 min read
Article
2959 Scholl, provisional designation 1983 RE2, is a carbonaceous Hildian asteroid from the outer regions of the asteroid belt, approximately 34 kilometers in diameter. It was discovered on 4 September 1983 by English-American astronomer Edward Bowell of the Lowell Observatory at Anderson Mesa Station near Flagstaff, Arizona. The asteroid was named after German astronomer Hans Scholl.
Orbit and classification