1997 XR2
(433953) 1997 XR2 (also written 1997 XR2) is an asteroid discovered on December 4, 1997. It has a diameter of 0.1-0.3 km and an estimated mass on the order of 1010 kilograms.
From early 2002 to February 24, 2006, 1997 XR2 was considered to have about a 1 in 10,000 chance of colliding with Earth on June 1, 2101, based on a 27-day observation arc in December 1997.
It was ranked at one on the Torino Scale of impact risk, and was the only near-Earth object to be ranked higher than zero (the scale is 0–10) until it was joined by 2004 VD17 at level one in November 2004, and then when 99942 Apophis (then known only by its provisional designation 2004 MN4) was temporarily assessed at level four in December 2004. 2004 VD17 and 99942 Apophis are now rated at level zero.
On February 24, 2006, 1997 XR2 was observed by the Mt. Lemmon Survey after being lost for more than 8 years. The refinement of its orbit eliminated the possibility of impact in 2101. It is now known that on November 20, 2101, the asteroid will be 0.0392 AU (5,860,000 km; 3,640,000 mi) from Earth.
Ford Fiesta
The Ford Fiesta is a supermini car manufactured by Ford since 1976, lasting seven generations. The Fiesta has been manufactured in Europe, Brazil, Argentina, Mexico, China, India, Taiwan, Thailand, and South Africa.
In 2010, the sixth generation Fiesta (Mark VI) was introduced worldwide, making it the first Fiesta model to be sold in North America since the Fiesta Mark I was discontinued at the end of 1980.
The Fiesta has sold over 16 million units since 1976, making it one of the best selling Ford marques behind the Escort and the F-Series.
Development
The Fiesta was originally developed under the project name "Bobcat" (not to be confused with the subsequent rebadged Mercury variant of the Ford Pinto) and approved for development by Henry Ford II in September 1972, just after the launch of two comparable cars – the Fiat 127 and Renault 5. Development targets indicated a production cost US$100 less than the current Escort. The car was to have a wheelbase longer than that of the Fiat 127, but with overall length shorter than that of Ford's Escort. The final proposal was developed by Tom Tjaarda at Ghia. The project was approved for production in autumn 1973, with Ford's engineering centres in Cologne and Dunton (Essex) collaborating
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