+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101613 (1999 CX8) Classification: Main-belt Asteroid          SPK-ID: 2101613 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .230394570833966 4.1982e-08   a 2.581085787107158 1.052e-08 au q 1.986417634900955 1.1272e-07 au i 4.171016824766389 4.6003e-06 deg node 55.21967193787533 3.9908e-05 deg peri 26.71854126133822 4.1644e-05 deg M 153.9628944658122 1.1043e-05 deg tp 2458552.737723933184 (2019-Mar-10.23772393) 4.3933e-05 TDB period 1514.61441533132 4.15 9.2599e-06 2.535e-08 d yr n .2376842557128644 1.4531e-09 deg/d Q 3.17575393931336 1.2944e-08 au   Orbit Determination Parameters    # obs. used (total)      1020      data-arc span      9192 days (25.17 yr)      first obs. used      1995-03-27      last obs. used      2020-05-26      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48866      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:37:39   Additional Information  Earth MOID = 1.0029 au   Jupiter MOID = 2.08488 au   T_jup = 3.383  [ 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 15.77   n/a E2021B55   101613 (1999 CX8)          Discovered 1999-Feb-12 by Comba, P. G. at Prescott Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-20 05:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin