+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   523512 (2017 NQ4) Classification: Main-belt Asteroid          SPK-ID: 2523512 [ 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 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1772487541397945 4.0365e-08   a 2.568439523345005 4.1141e-08 au q 2.113186817748695 1.0414e-07 au i 14.71937208232358 9.7797e-06 deg node 129.9150905000966 2.4906e-05 deg peri 121.7596982912876 4.3039e-05 deg M 302.0328308020382 3.683e-05 deg tp 2459242.592889945935 (2021-Jan-28.09288995) 0.00015653 TDB period 1503.49657549952 4.12 3.6124e-05 9.89e-08 d yr n .2394418489981555 5.753e-09 deg/d Q 3.023692228941314 4.8433e-08 au   Orbit Determination Parameters    # obs. used (total)      116      data-arc span      4400 days (12.05 yr)      first obs. used      2008-03-06      last obs. used      2020-03-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53376      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 22:43:37   Additional Information  Earth MOID = 1.13704 au   Jupiter MOID = 2.19744 au   T_jup = 3.363  [ 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 17.0   n/a MPO448257   523512 (2017 NQ4)          Discovered 2012-Feb-20 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-23 22:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin