+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102314 (1999 TB99) Classification: Main-belt Asteroid          SPK-ID: 2102314 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1134632891675462 4.1535e-08   a 2.341289414048556 1.2469e-08 au q 2.07563901623745 9.6569e-08 au i 12.60472400922119 5.9878e-06 deg node 169.1848869858626 1.9968e-05 deg peri 144.7040129354885 3.4737e-05 deg M 24.01513028446285 2.8798e-05 deg tp 2459113.210194573381 (2020-Sep-20.71019457) 0.00010435 TDB period 1308.522151716721 3.58 1.0453e-05 2.862e-08 d yr n .2751195304777199 2.1977e-09 deg/d Q 2.606939811859662 1.3883e-08 au   Orbit Determination Parameters    # obs. used (total)      568      data-arc span      8263 days (22.62 yr)      first obs. used      1998-04-21      last obs. used      2020-12-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .588      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:31:07   Additional Information  Earth MOID = 1.07335 au   Jupiter MOID = 2.71965 au   T_jup = 3.523  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.9   n/a MPO385432   diameter diameter 3.826 km 1.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   geometric albedo albedo 0.053   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   102314 (1999 TB99)          Discovered 1999-Oct-02 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1999 TB99 = 1998 HJ156  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-05 02:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin