+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3830 Trelleborg (1986 RL) Classification: Main-belt Asteroid          SPK-ID: 2003830 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09901046193621965 3.9839e-08   a 3.035449821571706 1.9794e-08 au q 2.734908532553676 1.1776e-07 au i 9.625991969581392 4.4351e-06 deg node 257.6925852302488 2.6214e-05 deg peri 56.65047194518149 3.6222e-05 deg M 170.4570127410698 2.7379e-05 deg tp 2458085.870117704417 (2017-Nov-28.37011770) 0.0001441 TDB period 1931.670350967476 5.29 1.8894e-05 5.173e-08 d yr n .1863672027785145 1.8229e-09 deg/d Q 3.335991110589736 2.1753e-08 au   Orbit Determination Parameters    # obs. used (total)      2176      data-arc span      24230 days (66.34 yr)      first obs. used      1954-07-05      last obs. used      2020-11-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39858      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:14:22   Additional Information  Earth MOID = 1.73503 au   Jupiter MOID = 1.90447 au   T_jup = 3.213  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 11.6   n/a MPO502190   diameter diameter 17.789 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 17.059 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Abrams, N.S.; Bieryla, A.; Gomez, S.; Huang, J.; et al. (2020) Minor Planet Bull. 47, 3-4.] geometric albedo albedo 0.146   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   3830 Trelleborg (1986 RL)          Discovered 1986-Sep-11 by Jensen, P. at Brorfelde Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1986 RL = 1980 ND  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 23:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin