Category:Opportunity rover

**Opportunity**
	former NASA Mars rover
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Instance of	Mars rover;
Part of	Mars Exploration Rover;
Location	Margaritifer Sinus quadrangle
Country of origin	United States of America;
Operator	Jet Propulsion Laboratory;
Start point	Cape Canaveral Space Launch Complex 17B;
Manufacturer	Jet Propulsion Laboratory;
Space launch vehicle	Delta II (D299);
UTC date of spacecraft launch	8 July 2003 (03:18:15);
Significant event	rocket launch (Cape Canaveral Space Launch Complex 17B, 2003); surface exploration (Mars, Eagle, 45.16 kilometre, rover, 2004); loss of signal (2018); service retirement (2019);
Source of energy	spacecraft solar array (900 watt); lithium-ion battery (2, 8 ampere hour);
Mass	185 kg;
Width	122 cm (wheelbase); 225 cm (spacecraft solar array);
Length	141 cm (wheelbase); 151 cm (spacecraft solar array);
Height	154 cm;
Follows	Sojourner;
Followed by	Curiosity;
Different from	Opportunity ; 39382 Opportunity;
Authority file
	Q193538;
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English: Opportunity, MER-B (Mars Exploration Rover – B), MER-1, is a robotic rover on the planet Mars, active since 2004. It is the remaining rover in NASA's ongoing Mars Exploration Rover Mission. Launched from Earth on 7 July 2003, it landed on the Martian Meridiani Planum on 25 January 2004 at 05:05 Ground UTC (about 13:15 local time), three weeks after its twin Spirit (MER-A) touched down on the other side of the planet.

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