+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   249052 (2007 TN129) Classification: Main-belt Asteroid          SPK-ID: 2249052 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .137939683416097 8.8139e-08   a 3.040002768888539 4.0285e-08 au q 2.620665749363996 2.6731e-07 au i 9.103241845126941 1.118e-05 deg node 37.79415016580919 3.9946e-05 deg peri 14.88973425561114 5.1766e-05 deg M 166.1890898789927 3.5906e-05 deg tp 2458306.763686181532 (2018-Jul-07.26368618) 0.00018304 TDB period 1936.018021453279 5.30 3.8483e-05 1.054e-07 d yr n .1859486823008831 3.6962e-09 deg/d Q 3.459339788413083 4.5842e-08 au   Orbit Determination Parameters    # obs. used (total)      311      data-arc span      5903 days (16.16 yr)      first obs. used      2004-03-18      last obs. used      2020-05-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55352      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 00:20:41   Additional Information  Earth MOID = 1.63171 au   Jupiter MOID = 1.94447 au   T_jup = 3.207  [ 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 15.65   n/a E2020-QN2   diameter diameter 6.783 km 0.577 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.024   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   249052 (2007 TN129)          Discovered 2007-Oct-06 by Spacewatch at Kitt Peak Reference: 20100824/Numbers.arc Last Updated: 2010-08-27 [ show close-approach data ] Alternate Designations  2007 TN129 = 2004 FO159  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-11 20:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin