+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101055 (1998 RL) Classification: Main-belt Asteroid          SPK-ID: 2101055 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2002413762078576 3.8052e-08   a 2.332940668050236 7.6163e-09 au q 1.865789418068578 9.0785e-08 au i 5.134003134389372 4.2532e-06 deg node 177.0340516590076 4.8315e-05 deg peri 142.8404597668414 4.958e-05 deg M 56.20748689666004 1.1923e-05 deg tp 2458797.289738471868 (2019-Nov-09.78973847) 4.264e-05 TDB period 1301.529354703713 3.56 6.3736e-06 1.745e-08 d yr n .276597680028471 1.3545e-09 deg/d Q 2.800091918031894 9.1413e-09 au   Orbit Determination Parameters    # obs. used (total)      665      data-arc span      7747 days (21.21 yr)      first obs. used      1998-09-01      last obs. used      2019-11-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57623      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:02:42   Additional Information  Earth MOID = .856259 au   Jupiter MOID = 2.52782 au   T_jup = 3.537  [ 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 16.1   n/a MPO248021   101055 (1998 RL)          Discovered 1998-Sep-01 by Beijing Schmidt CCD Asteroid Program at Xinglong Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1998 RL = 2001 HM50  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-06 02:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin