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MER-A ("Spirit") is the first of the two Mars Exploration Rover Missions. She successfully landed on Mars on January 3, 2004 at 20:35 PST (04:35 UTC on January 4). Her twin, MER-B ("Opportunity"), landed successfully on Mars on January 24, 2004.


1 Naming of Spirit and Opportunity

The Spirit and Opportunity rovers were named via a student essay competition, from a winning entry by Sofi Collis, a 9 year old 3rd grade student from Arizona.

I used to live in an Orphanage.
It was dark and cold and lonely.
At night, I looked up at the sparkly sky and felt better.
I dreamed I could fly there.
In America, I can make all my dreams come true.....
Thank-you for the "Spirit" and the "Opportunity"

—Sofi Collis, age 9

See NASA Names Mars Exploration Rovers Spirit and Opportunity

2 Landing site: Columbia Memorial Station

MER-A landed in Gusev crater about 10 km from the center of the target ellipse at latitude 14.5718° S ± 30 meters, longitude 175.4785° E ± 0.5 meters [1]. The rover, parachute, heatshield and several bounce marks are visible in a picture taken by Mars Global Surveyor.

A panorama [2] shows a slightly rolling surface, littered with small rocks, with hills on the horizon up to 27 km away. The MER team named the landing site "Columbia Memorial Station," in honor of the seven astronauts killed in the Space Shuttle Columbia disasterSTS-107 on launch day STS-107 was a space shuttle mission by NASA using the Space Shuttle Columbia''. The entire seven member crew was killed on February 1, 2003, when the shuttle disintegrated over Texas during reentry into the Earth's atmosphere. This w.

On January 27January 27 is the 27th day of the year in the Gregorian Calendar. There are 338 days remaining (339 in leap years). Events 1606 Gunpowder Plot: The trial of Guy Fawkes and other conspirators begin and later ends in their execution on January 31. 1785 The NASA memorialized the crew of Apollo 1Apollo One is the name given to the Apollo/Saturn 204 AS-204 spacecraft after it was destroyed by fire during a training exercise on January 27, 1967, at Pad 34 atop a Saturn IB rocket. Its crew were the astronauts selected for the initial Apollo program by naming three hills to the north of "Columbia Memorial Station" for Gus Grissom, Ed White and Roger Chaffee. On February 2February 2 is the 33rd day of the year in the Gregorian Calendar. There are 332 days remaining (333 in leap years). Events 962 Pope John XII crowns Otto I, Holy Roman Emperor. 1032 Conrad II, Holy Roman Emperor becomes King of Burgundy. 1119 Callixtus II, the astronauts on Columbia's final mission were further memorialized when NASA named a set of hills to the east of the landing site the Columbia Hills Complex, denoting seven peaks in that area Anderson, Brown, Chawla, Clark, Husband, McCool and Ramon. (NASA has submitted these geographical feature names to the IAU for approval.)

Newly christened "Grissom Hill" is located 7.5 kilometers (4.7 miles) to the southwest of Spirit's position. "White Hill" is 11.2 kilometers (7 miles) northwest of its position and "Chaffee Hill" is 14.3 kilometers (8.9 miles) south-southwest of rover's position.


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