+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   152795 (1999 TW113) Classification: Main-belt Asteroid          SPK-ID: 2152795 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1655977946772549 4.03e-08   a 2.763181336790202 1.9e-08 au q 2.305604601124395 1.1197e-07 au i 8.741081403557827 4.3932e-06 deg node 203.1412457139784 2.9176e-05 deg peri 98.51236052476307 3.1903e-05 deg M 272.7409877937445 1.5429e-05 deg tp 2459607.149552590526 (2022-Jan-27.64955259) 7.3976e-05 TDB period 1677.693056925238 4.59 1.7304e-05 4.738e-08 d yr n .2145803718469119 2.2132e-09 deg/d Q 3.220758072456008 2.2146e-08 au   Orbit Determination Parameters    # obs. used (total)      659      data-arc span      8333 days (22.81 yr)      first obs. used      1998-05-01      last obs. used      2021-02-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .56393      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 19:28:42   Additional Information  Earth MOID = 1.30872 au   Jupiter MOID = 2.07818 au   T_jup = 3.304  [ 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 15.45   n/a E2021B55   152795 (1999 TW113)          Discovered 1999-Oct-04 by LINEAR at Socorro Reference: 20070402/Numbers.arc Last Updated: 2007-04-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 10:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin