+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   12075 Legg (1998 FX69) Classification: Main-belt Asteroid          SPK-ID: 2012075 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1654846582534599 4.0141e-08   a 2.459195328778667 9.1795e-09 au q 2.052236230217224 9.7205e-08 au i 3.958403820934725 4.4294e-06 deg node 133.4375875733409 4.6767e-05 deg peri 146.0459617826188 4.8025e-05 deg M 201.9688052752435 1.064e-05 deg tp 2459618.841346485285 (2022-Feb-08.34134649) 4.2805e-05 TDB period 1408.600910234278 3.86 7.8869e-06 2.159e-08 d yr n .2555727441210618 1.431e-09 deg/d Q 2.866154427340109 1.0699e-08 au   Orbit Determination Parameters    # obs. used (total)      1636      data-arc span      10683 days (29.25 yr)      first obs. used      1991-08-06      last obs. used      2020-11-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52917      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:48:00   Additional Information  Earth MOID = 1.03723 au   Jupiter MOID = 2.26856 au   T_jup = 3.469  [ 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 14.4   n/a MPO313516   diameter diameter 6.874 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.065   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   12075 Legg           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Tiffany Amelia Legg (b. 1987) is a finalist in the 2002 Intel International Science and Engineering Fair for her earth and space sciences project. She attends the Duncan Senior High School, Duncan, Oklahoma, U.S.A. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020724/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  1998 FX69 = 1991 PE16  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 13:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin