+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   214503 (2005 XA61) Classification: Main-belt Asteroid          SPK-ID: 2214503 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2198672018767015 1.0519e-07   a 2.274768236504605 1.4279e-08 au q 1.774621309426338 2.3499e-07 au i 3.184514046110097 8.4625e-06 deg node 249.2337592048512 0.00017641 deg peri 84.94812857901184 0.00017785 deg M 159.4767833576101 2.4182e-05 deg tp 2458445.364339029458 (2018-Nov-22.86433903) 8.1176e-05 TDB period 1253.153178423814 3.43 1.18e-05 3.231e-08 d yr n .2872753356878522 2.705e-09 deg/d Q 2.774915163582871 1.7419e-08 au   Orbit Determination Parameters    # obs. used (total)      177      data-arc span      21672 days (59.33 yr)      first obs. used      1960-09-24      last obs. used      2020-01-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59411      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 03:12:07   Additional Information  Earth MOID = .768142 au   Jupiter MOID = 2.60926 au   T_jup = 3.575  [ 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 17.7   n/a MPO454540   214503 (2005 XA61)          Discovered 2005-Dec-04 by Spacewatch at Kitt Peak Reference: 20090509/Numbers.arc Last Updated: 2009-05-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-02 11:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin