+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190798 (2001 RT45) Classification: Main-belt Asteroid          SPK-ID: 2190798 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1657531656156144 3.4329e-08   a 2.354150742375356 9.1839e-09 au q 1.963942804490293 8.1136e-08 au i 7.465946252938187 4.8426e-06 deg node 32.27083217276613 3.3052e-05 deg peri 39.45180163952608 3.6733e-05 deg M 67.51784666966972 1.6e-05 deg tp 2458953.062276320394 (2020-Apr-13.56227632) 5.8185e-05 TDB period 1319.319038127345 3.61 7.7203e-06 2.114e-08 d yr n .272868039948084 1.5968e-09 deg/d Q 2.744358680260421 1.0706e-08 au   Orbit Determination Parameters    # obs. used (total)      522      data-arc span      7090 days (19.41 yr)      first obs. used      2001-08-27      last obs. used      2021-01-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56696      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 12:03:23   Additional Information  Earth MOID = .983742 au   Jupiter MOID = 2.56246 au   T_jup = 3.526  [ 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 16.47   n/a E2021B55   190798 (2001 RT45)          Discovered 2001-Sep-14 by NEAT at Palomar Reference: 20080917/Numbers.arc Last Updated: 2008-09-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-11 13:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin