+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   441080 (2007 RP155) Classification: Main-belt Asteroid          SPK-ID: 2441080 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1162833480613205 5.8376e-07   a 2.535166841523759 4.5008e-08 au q 2.240369153297334 1.4681e-06 au i 14.36568764350488 1.3578e-05 deg node 344.0621226397757 2.8436e-05 deg peri 167.7206924453574 0.00010501 deg M 254.4882115920959 0.00013312 deg tp 2459432.622350043621 (2021-Aug-06.12235004) 0.00054419 TDB period 1474.375976021746 4.04 3.9263e-05 1.075e-07 d yr n .2441710973691898 6.5023e-09 deg/d Q 2.829964529750185 5.0242e-08 au   Orbit Determination Parameters    # obs. used (total)      86      data-arc span      5861 days (16.05 yr)      first obs. used      2003-09-16      last obs. used      2019-10-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51157      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 15:55:47   Additional Information  Earth MOID = 1.25185 au   Jupiter MOID = 2.1622 au   T_jup = 3.396  [ 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 16.6   n/a MPO495184   441080 (2007 RP155)          Discovered 2007-Aug-24 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-09-02 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-19 17:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin