+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102489 (1999 TC262) Classification: Main-belt Asteroid          SPK-ID: 2102489 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05943365184601693 6.2487e-08   a 2.433822073754339 1.16e-08 au q 2.289171139967673 1.5122e-07 au i 1.570427901842584 6.0961e-06 deg node 319.786767888028 0.0001585 deg peri 188.854525926165 0.00016476 deg M 92.65970260301526 4.202e-05 deg tp 2458843.539577838284 (2019-Dec-26.03957784) 0.00016205 TDB period 1386.856943937956 3.80 9.9152e-06 2.715e-08 d yr n .2595797652912825 1.8558e-09 deg/d Q 2.578473007541006 1.229e-08 au   Orbit Determination Parameters    # obs. used (total)      441      data-arc span      7534 days (20.63 yr)      first obs. used      1999-10-06      last obs. used      2020-05-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59525      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:54:28   Additional Information  Earth MOID = 1.30007 au   Jupiter MOID = 2.40641 au   T_jup = 3.503  [ 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 16.66   n/a E2021B55   102489 (1999 TC262)          Discovered 1999-Oct-13 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-05 02:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin