+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11870 Sverige (1989 TC3) Classification: Main-belt Asteroid          SPK-ID: 2011870 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1883333001801514 3.3397e-08   a 3.0521955162829 1.5295e-08 au q 2.47736546190628 1.0177e-07 au i 7.84470451615367 4.5078e-06 deg node 167.928934690743 2.4472e-05 deg peri 304.9877813857173 2.712e-05 deg M 236.6398498025281 1.3985e-05 deg tp 2459867.904822806364 (2022-Oct-15.40482281) 7.8423e-05 TDB period 1947.677072585267 5.33 1.464e-05 4.008e-08 d yr n .1848355690310359 1.3894e-09 deg/d Q 3.627025570659519 1.8176e-08 au   Orbit Determination Parameters    # obs. used (total)      1537      data-arc span      11390 days (31.18 yr)      first obs. used      1989-09-28      last obs. used      2020-12-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49714      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:02:52   Additional Information  Earth MOID = 1.50358 au   Jupiter MOID = 1.54099 au   T_jup = 3.195  [ 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 13.60   n/a E2021B10   diameter diameter 6.971 km 0.403 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.159   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11870 Sverige           Discovered 1989 Oct. 7 by E. W. Elst at the European Southern Observatory. Sverige (Sweden) is a nation in northern Europe, located on the Scandinavian peninsula together with Norway. The country is dominated by forests of pine and birch. It has a very rich animal life. Sweden has always been celebrated for its high cultural and ethic standards. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010705/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1989 TC3 = 1991 EW1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-12 17:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin