+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   523411 (2017 DE122) Classification: Main-belt Asteroid          SPK-ID: 2523411 [ 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 4 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04152423883174301 9.8338e-08   a 2.791549505515252 4.4542e-08 au q 2.675632537137603 2.8053e-07 au i 3.433070559168535 1.0049e-05 deg node 342.3415736714294 0.00012172 deg peri 218.3024962718555 0.00015076 deg M 230.4490506837778 9.4628e-05 deg tp 2459613.562182450981 (2022-Feb-03.06218245) 0.00045509 TDB period 1703.595279287677 4.66 4.0774e-05 1.116e-07 d yr n .2113177961789883 5.0577e-09 deg/d Q 2.907466473892901 4.6392e-08 au   Orbit Determination Parameters    # obs. used (total)      74      data-arc span      6047 days (16.56 yr)      first obs. used      2003-04-07      last obs. used      2019-10-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .67582      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 20:12:26   Additional Information  Earth MOID = 1.67363 au   Jupiter MOID = 2.05831 au   T_jup = 3.325  [ 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 17.1   n/a MPO448230   523411 (2017 DE122)          Discovered 2012-Feb-03 by Pan-STARRS 1 at Haleakala Reference: Last Updated: 2018-05-31 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-19 19:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin