+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190720 (2001 NL10) Classification: Main-belt Asteroid          SPK-ID: 2190720 [ 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 .2624853159554198 5.2062e-08   a 2.267049023735233 8.4943e-09 au q 1.671981944453665 1.1869e-07 au i 8.091093355706295 7.5141e-06 deg node 292.8401949316931 3.461e-05 deg peri 38.25214341223414 3.7054e-05 deg M 229.342833367695 1.398e-05 deg tp 2459653.002027625384 (2022-Mar-14.50202763) 4.989e-05 TDB period 1246.77990610016 3.41 7.0072e-06 1.918e-08 d yr n .2887438257856231 1.6228e-09 deg/d Q 2.862116103016803 1.0724e-08 au   Orbit Determination Parameters    # obs. used (total)      347      data-arc span      7346 days (20.11 yr)      first obs. used      2000-02-12      last obs. used      2020-03-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .63138      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 06:58:38   Additional Information  Earth MOID = .667354 au   Jupiter MOID = 2.52 au   T_jup = 3.556  [ 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 16.71   n/a E2021B55   190720 (2001 NL10)          Discovered 2001-Jul-14 by NEAT at Haleakala Reference: 20080917/Numbers.arc Last Updated: 2008-09-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-12 22:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin