+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   150796 (2001 RO54) Classification: Main-belt Asteroid          SPK-ID: 2150796 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02483578395925109 3.6061e-08   a 2.416426767207519 1.1022e-08 au q 2.356412914063801 8.5162e-08 au i 5.112426504156915 6.9627e-06 deg node 26.52650004135963 3.9857e-05 deg peri 273.8881752809469 0.00015374 deg M 105.7174433928384 0.00014928 deg tp 2458797.594649526541 (2019-Nov-10.09464953) 0.00056862 TDB period 1372.015076371692 3.76 9.3876e-06 2.57e-08 d yr n .2623877872771075 1.7953e-09 deg/d Q 2.476440620351236 1.1296e-08 au   Orbit Determination Parameters    # obs. used (total)      490      data-arc span      7553 days (20.68 yr)      first obs. used      2000-05-07      last obs. used      2021-01-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54103      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 19:20:04   Additional Information  Earth MOID = 1.34579 au   Jupiter MOID = 2.55012 au   T_jup = 3.510  [ 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 16.35   n/a E2021B55   150796 (2001 RO54)          Discovered 2001-Sep-12 by LINEAR at Socorro Reference: 20070303/Numbers.arc Last Updated: 2007-03-07 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-18 16:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin