+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   523009 (2016 PZ121) Classification: Main-belt Asteroid          SPK-ID: 2523009 [ 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 5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1142478939849884 1.0522e-07   a 2.564038448253414 2.8602e-08 au q 2.271102455443923 2.7603e-07 au i 12.94079783497976 9.182e-06 deg node 41.35658000635201 3.9594e-05 deg peri 288.3656275733431 5.3367e-05 deg M 335.4357547575572 3.3823e-05 deg tp 2459102.826036045024 (2020-Sep-10.32603604) 0.00014098 TDB period 1499.633821948662 4.11 2.5093e-05 6.87e-08 d yr n .2400586027942521 4.0168e-09 deg/d Q 2.856974441062904 3.187e-08 au   Orbit Determination Parameters    # obs. used (total)      52      data-arc span      7197 days (19.70 yr)      first obs. used      2000-11-30      last obs. used      2020-08-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .63254      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 22:47:04   Additional Information  Earth MOID = 1.30071 au   Jupiter MOID = 2.51076 au   T_jup = 3.389  [ 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 17.6   n/a MPO448125   523009 (2016 PZ121)          Discovered 2007-Apr-19 by Spacewatch at Kitt Peak Reference: Last Updated: 2018-05-31 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-25 08:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin