+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   10806 Mexico (1993 FA2) Classification: Main-belt Asteroid          SPK-ID: 2010806 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1068541038687906 3.9564e-08   a 3.192712188691708 1.6931e-08 au q 2.851557788858091 1.2884e-07 au i 6.155791834421353 3.6325e-06 deg node 98.10007320789913 4.1546e-05 deg peri 80.1820627043593 4.5452e-05 deg M 283.3001263538526 1.9294e-05 deg tp 2459444.446084509086 (2021-Aug-17.94608451) 0.00011312 TDB period 2083.713868429544 5.70 1.6575e-05 4.538e-08 d yr n .1727684426611439 1.3743e-09 deg/d Q 3.533866588525326 1.874e-08 au   Orbit Determination Parameters    # obs. used (total)      1870      data-arc span      12318 days (33.72 yr)      first obs. used      1987-02-23      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49924      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:43:41   Additional Information  Earth MOID = 1.86397 au   Jupiter MOID = 1.46873 au   T_jup = 3.178  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.2   n/a MPO358736   diameter diameter 11.493 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.084   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   10806 Mexico           Discovered 1993 Mar. 23 by E. W. Elst at Caussols. Mexico is a country in the southern part of North America. Much of it is high plateau cradled by three great mountain ranges, one of which contains active volcanoes. Several great civilizations, among them Olmec, Toltec, Mayan and Aztec, flourished there from about 100 A.D. to the time of the Spanish conquest. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010509/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1993 FA2 = 1987 DB5 = 1998 BZ10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-25 14:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin