+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102922 (1999 XA30) Classification: Main-belt Asteroid          SPK-ID: 2102922 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07271575955913531 3.4345e-08   a 2.433111306362151 1.0717e-08 au q 2.256185769628107 7.9804e-08 au i 6.573314576129466 3.1062e-06 deg node 116.7387889295826 3.521e-05 deg peri 49.09823917549528 4.4415e-05 deg M 111.9169456173799 2.6855e-05 deg tp 2458769.542205009836 (2019-Oct-13.04220501) 0.00010319 TDB period 1386.249466875785 3.80 9.1592e-06 2.508e-08 d yr n .2596935173662057 1.7158e-09 deg/d Q 2.610036843096195 1.1497e-08 au   Orbit Determination Parameters    # obs. used (total)      1039      data-arc span      7613 days (20.84 yr)      first obs. used      1999-11-04      last obs. used      2020-09-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51845      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:44:16   Additional Information  Earth MOID = 1.27012 au   Jupiter MOID = 2.3725 au   T_jup = 3.494  [ 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 15.48   n/a E2021B55   102922 (1999 XA30)          Discovered 1999-Dec-06 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-Apr-17 20:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin