+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1523048406888448 1.1115e-08   a 2.239276080108461 4.8728e-09 au q 1.898223493469201 2.4909e-08 au i 3.628455710514771 8.4399e-07 deg node 95.04057527453725 1.2415e-05 deg peri 260.2549714431714 1.2529e-05 deg M 55.76191086380271 6.0277e-06 deg tp 2459010.918901469186 (2020-Jun-10.41890147) 2.0483e-05 TDB period 1223.939323704135 3.35 3.995e-06 1.094e-08 d yr n .2941322278219598 9.6007e-10 deg/d Q 2.580328666747722 5.6149e-09 au   Orbit Determination Parameters    # obs. used (total)      2311      data-arc span      13660 days (37.40 yr)      first obs. used      1983-10-09      last obs. used      2021-03-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47524      source      ORB      producer      Otto Matic      solution date      2021-Mar-16 22:32:12   Additional Information  Earth MOID = .895807 au   Jupiter MOID = 2.8522 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 14.48   n/a E2021B10   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 ] 2021-Apr-12 14:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin