(5836) 1993 MF

Highly eccentric, stony asteroid October 2019 yes (5836) 1993 MF #FFC2E0 22 June 1993 E. F. HelinK. J. Lawrence Palomar Obs. (5836) 1993 MF AmorNEO 4 September 2017 (JD 2458000.5) 0 35.90 yr (13,112 days) 3.7489 AU 1.1311 AU 2.4400 AU 0.5364 3.81 yr (1,392 days) 107.39° 0.2586 ms / day 7.9497° 238.78° 77.974° 0.1842 AU 71.8 LD 2.79 km (derived)3.8 km 4.948 0.005 hlcdb-Warner-20164.9543 0.0002 hlcdb-Pravec-19974.959 h4.96 0.01 h 0.20 (assumed) SMASS = SS 14.65 0.2 (R)lcdb-Pravec-199714.715.01 0.1615.03 0.0515.141 0.13915.43 0.40 (5836) 1993 MF is a highly eccentric, stony asteroid, classified as a near-Earth object of the Amor group of asteroids, approximately 3 kilometers in diameter. It was discovered on 22 June 1993, by American astronomers Eleanor Helin and Kenneth Lawrence at the U.S. Palomar Observatory in California. Classification and orbit The stony S-type asteroid orbits the Sun at a distance of 1.1–3.7 AU once every 3 years and 10 months (1,392 days). Its orbit has an eccentricity of 0.54 and an inclination of 8° with respect to the ecliptic. It has an Earth minimum orbital intersection distance of nearly 0.184 AU km on off 3, which corresponds to 71.8 lunar distances. As it crosses the orbit of Mars, it may also be classified as a Mars-crosser, and, on 28 November 2023, it will pass 0.02535 AU km on on from the Red Planet. The first precovery was taken at the Australian Siding Spring Observatory in 1981, extending the body's observation arc by 12 years prior to its discovery. Physical characteristics Since the 1990s, and up to June 2016, four well-defined rotational lightcurves were obtained for this asteroid from photometric observations, giving a rotation period of approximately 4.95 hours with a high brightness variation between 0.53 and 0.82 in magnitude, indicating that the asteroid has a non-spheroidal shape. In the 1990s, Italian astronomer Stefano Mottola obtained a lightcurve at La Silla during the EUNEASO, a European near-Earth object search and follow-up observation program to determine additional physical parameters (U=3). Further lightcurves were obtained by Polish astronomer Wiesław Z. Wiśniewski at UA's LPL in October 1993, and by Czech astronomer Petr Pravec at Ondřejov Observatory in September 1997 (U=3/3).lcdb-Pravec-1997 In June 2016, the fourth and most recent photometric observation was made by American astronomer Brian Warner at his Palmer Divide Station, Colorado, which gave a period of 4.948 0.005 hours with an amplitude of 0.82 in magnitude (U=3).lcdb-Warner-2016 Diameter While in the 1990s, Stefano Mottola estimated the asteroid to measure 3.8 kilometers in diameter (H = 15.03), the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and derives a shorter diameter of 2.8 kilometers, based on an absolute magnitude of 15.14. Notes lcdb-Pravec-1997 Pravec (1997) web: observation date: 1997-11-04. Rotation period of 4.948 0.005 hours with a brightness amplitude of 0.74 mag and an absolute magnitude of 14.65 in the R-band (U=3). Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (5836) and Pravec, P.; Wolf, M.; Sarounova, L. (1997) lcdb-Warner-2016 Warner (2016) web: observation date: 2016-06-07. Rotation period of 4.948 0.005 hours with a brightness amplitude of 0.82 mag (U=3). Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (5836) References 30em 2017-03-20 last obs. JPL Small-Body Database Browser: 5836 (1993 MF) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2005836 https://web.archive.org/web/20191211030036/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2005836 dead 11 December 2019 Jet Propulsion Laboratory 26 May 2017 5836 (1993 MF) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=5836 30 August 2016 5836 30 August 2016 6 S. Mottola G. de Angelis M. di Martino A. Erikson A. W. Harris G. Hahn G. Neukum P. Pravec M. Wolf March 1995 The EUNEASO Photometric Follow-up Program http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1995LPI....26.1003M Abstracts of the Lunar and Planetary Science Conference 26 1003 1995LPI....26.1003M 30 August 2016 W. Z. Wisniewski T. M. Michalowski A. W. Harris R. S. McMillan March 1995 Photoelectric Observations of 125 Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1995LPI....26.1511W Abstracts of the Lunar and Planetary Science Conference 26 1511 1995LPI....26.1511W 30 August 2016 Petr Pravec Alan W. Harris Peter Kusnirák Adrián Galád Kamil Hornoch September 2012 Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012Icar..221..365P Icarus 221 1 365–387 2012Icar..221..365P 10.1016/j.icarus.2012.07.026 30 August 2016 6 Peter Veres Robert Jedicke Alan Fitzsimmons Larry Denneau Mikael Granvik Bryce Bolin Serge Chastel Richard J. Wainscoat William S. Burgett Kenneth C. Chambers Heather Flewelling Nick Kaiser Eugen A. Magnier Jeff S. Morgan Paul A. Price John L. Tonry Christopher Waters November 2015 Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 53493339 30 August 2016 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Dictionary of Minor Planet Names, Google books Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend 5836 5836 1993MF 5835 Mainfranken 5836 5837 Hedin 005836 Category:Discoveries by Eleanor F. Helin Category:Discoveries by Kenneth J. Lawrence 005836 19930622