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Mount Lemmon Survey (MLS) is a part of the Catalina Sky Survey with observatory code G96.[2] MLS uses a 1.52 m (60 in) cassegrain reflector telescope (with 10560x10560-pixel camera at the f/1.6 prime focus, for a five square degree field of view)[3] operated by the Steward Observatory at Mount Lemmon Observatory, which is located at 2,791 meters (9,157 ft) in the Santa Catalina Mountains northeast of Tucson, Arizona.
| Alternative names | MLS |
|---|---|
| Coordinates | 32°26′31″N 110°47′20″W |
| Observatory code | G96 |
| Website | www |
| see List of minor planets § Main index |
It is currently one of the most prolific surveys worldwide, especially for discovering near-Earth objects. MLS ranks among the top discoverers on the Minor Planet Center's discovery chart with a total of more than 50,000 numbered minor planets.[1][4]
Andrea Boattini and the survey accidentally rediscovered 206P/Barnard-Boattini, a lost comet, on 7 October 2008.[5] The comet has made 20 revolutions since 1892 and passed within 0.3–0.4 AU of Jupiter in 1922, 1934 and 2005.[6][7] This comet was also the first comet to be discovered by photographic means, by the American astronomer Edward Emerson Barnard, who did so on the night of 13 October 1892.[5]
On 12 January 2008, Mount Lemmon Survey discovered the near-Earth asteroid 2008 AO112 at an apparent magnitude of 21 using a 1.5-meter (59 in) reflecting telescope.[8]
2011 UN63 was discovered by the Mount Lemmon Survey on 27 September 2009 and it is a stable L5 Mars trojan asteroid.[9][10] The survey also discovered the unusual Aten asteroid 2012 FC71, a dynamically cold Kozai resonator, on 31 March 2012.[11]
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