+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11229 Brookebowers (1999 JX52) Classification: Main-belt Asteroid          SPK-ID: 2011229 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1522919054593702 3.6896e-08   a 2.239123757028101 7.5283e-09 au q 1.898123333510948 8.3391e-08 au i 3.628498691272237 3.6697e-06 deg node 95.04000178719291 6.1162e-05 deg peri 260.2134793070037 6.2487e-05 deg M 356.9652687968471 1.6252e-05 deg tp 2459010.816521864925 (2020-Jun-10.31652186) 5.5279e-05 TDB period 1223.814441132189 3.35 6.172e-06 1.69e-08 d yr n .2941622421671645 1.4835e-09 deg/d Q 2.580124180545254 8.6747e-09 au   Orbit Determination Parameters    # obs. used (total)      1820      data-arc span      13449 days (36.82 yr)      first obs. used      1983-10-09      last obs. used      2020-08-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51426      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 00:23:05   Additional Information  Earth MOID = .897398 au   Jupiter MOID = 2.85183 au   T_jup = 3.618  [ 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 MPO435805   diameter diameter 3.507 km 0.996 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.274   0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   11229 Brookebowers           Discovered 1999 May 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Brooke Nacole Bowers (b. 1986) is a finalist in the 2002 Intel International Science and Engineering Fair for her zoology project. She attends the Tuscarawas Valley High School, Dover, Ohio, 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  1999 JX52 = 1983 TK2 = 1993 SE16  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-21 20:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin