+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   180023 (2003 AU16) Classification: Inner Main-belt Asteroid          SPK-ID: 2180023 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06223596565714552 3.237e-08   a 1.896320768987288 5.8608e-09 au q 1.778301414733663 6.2287e-08 au i 19.88325168286176 6.1233e-06 deg node 316.7519473613095 1.017e-05 deg peri 69.16286273205036 5.8292e-05 deg M 37.1373229639573 5.4315e-05 deg tp 2459102.104729729819 (2020-Sep-09.60472973) 0.00014402 TDB period 953.8193512667372 2.61 4.4218e-06 1.211e-08 d yr n .3774299604237379 1.7497e-09 deg/d Q 2.014340123240912 6.2256e-09 au   Orbit Determination Parameters    # obs. used (total)      593      data-arc span      7791 days (21.33 yr)      first obs. used      1999-09-19      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53163      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 11:42:29   Additional Information  Earth MOID = .818766 au   Jupiter MOID = 3.19996 au   T_jup = 3.877  [ 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 16.67   n/a E2021B55   180023 (2003 AU16)          Discovered 2003-Jan-05 by LONEOS at Anderson Mesa Reference: 20080321/Numbers.arc Last Updated: 2008-03-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-12 00:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin