+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   227788 (2006 XQ49) Classification: Main-belt Asteroid          SPK-ID: 2227788 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1666486840400656 4.3517e-08   a 2.344618807217346 1.4547e-08 au q 1.953891168418987 9.8673e-08 au i 3.621196056801623 5.5811e-06 deg node 114.4295861966641 8.1497e-05 deg peri 128.2837471332673 8.3509e-05 deg M 204.0335838773104 1.7912e-05 deg tp 2459768.613860971890 (2022-Jul-08.11386097) 6.6811e-05 TDB period 1311.314288256748 3.59 1.2204e-05 3.341e-08 d yr n .2745337278972088 2.555e-09 deg/d Q 2.735346446015706 1.6971e-08 au   Orbit Determination Parameters    # obs. used (total)      195      data-arc span      6111 days (16.73 yr)      first obs. used      2004-03-20      last obs. used      2020-12-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61348      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:12:10   Additional Information  Earth MOID = .941896 au   Jupiter MOID = 2.2818 au   T_jup = 3.540  [ 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 17.5   n/a MPO437078   227788 (2006 XQ49)          Discovered 2006-Dec-13 by Mt. Lemmon Survey at Mount Lemmon Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-11 13:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin