+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1871288822762027 3.3268e-08   a 3.056429673691552 1.5736e-08 au q 2.484483405097833 1.013e-07 au i 7.831106825499282 4.5068e-06 deg node 167.9863406061289 2.4818e-05 deg peri 304.6156041001634 2.748e-05 deg M 200.0613864750939 1.3953e-05 deg tp 2459867.603350073232 (2022-Oct-15.10335007) 7.9136e-05 TDB period 1951.731349589031 5.34 1.5072e-05 4.126e-08 d yr n .1844516152675438 1.4244e-09 deg/d Q 3.628375942285272 1.868e-08 au   Orbit Determination Parameters    # obs. used (total)      1525      data-arc span      11346 days (31.06 yr)      first obs. used      1989-09-28      last obs. used      2020-10-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49828      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:56:44   Additional Information  Earth MOID = 1.51086 au   Jupiter MOID = 1.54124 au   T_jup = 3.194  [ 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 13.5   n/a MPO435812   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-Jan-24 23:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin