+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   227114 (2005 NP57) Classification: Main-belt Asteroid          SPK-ID: 2227114 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1733605536914799 5.2529e-08   a 2.372273188653071 1.2381e-08 au q 1.961014595160722 1.2405e-07 au i 4.969328805086422 3.8138e-06 deg node 122.1739062796895 7.0199e-05 deg peri 257.2246114296797 7.1303e-05 deg M 28.28499271114968 1.2059e-05 deg tp 2459095.642608913010 (2020-Sep-03.14260891) 4.482e-05 TDB period 1334.58265932083 3.65 1.0448e-05 2.861e-08 d yr n .2697472483144688 2.1117e-09 deg/d Q 2.78353178214542 1.4527e-08 au   Orbit Determination Parameters    # obs. used (total)      244      data-arc span      6115 days (16.74 yr)      first obs. used      2004-04-14      last obs. used      2021-01-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53047      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:10:50   Additional Information  Earth MOID = .968883 au   Jupiter MOID = 2.68846 au   T_jup = 3.518  [ 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 17.3   n/a MPO437075   227114 (2005 NP57)          Discovered 2005-Jul-05 by Mt. Lemmon Survey at Mount Lemmon Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-13 13:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin