+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3457 Arnenordheim (1985 RA3) Classification: Main-belt Asteroid          SPK-ID: 2003457 [ 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 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05293805576837463 3.3282e-08   a 2.854824491599217 1.1409e-08 au q 2.703695633454016 9.2835e-08 au i 3.248999921281258 3.0373e-06 deg node 101.2551776011768 6.4997e-05 deg peri 207.8769393303055 7.2489e-05 deg M 141.9930806654349 3.2464e-05 deg tp 2458505.584131961582 (2019-Jan-22.08413196) 0.00015869 TDB period 1761.844389328252 4.82 1.0561e-05 2.891e-08 d yr n .2043313258427205 1.2248e-09 deg/d Q 3.005953349744418 1.2013e-08 au   Orbit Determination Parameters    # obs. used (total)      2978      data-arc span      18941 days (51.86 yr)      first obs. used      1969-03-12      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44745      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:10:44   Additional Information  Earth MOID = 1.68742 au   Jupiter MOID = 2.1258 au   T_jup = 3.300  [ 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 12.11   n/a E2021B10   diameter diameter 12.702 km 1.678 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.181   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   3457 Arnenordheim           Discovered 1985 Sept. 5 by H. Debehogne at the European Southern Observatory. The Norwegian composer Arne Nordheim (b. 1931) is one of the most influential musical voices of his country, and he has achieved wide international acclaim. He has on several occasions found inspiration in the heavens, as in his Celestial Mechanics, written for the opening ceremony of the 1994 Olympic Winter Games in Lillehammer. 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  1985 RA3 = 1969 EU = 1971 SK3 = 1973 AX1 = 1975 NT = 1979 HH4 = 1980 PT2 = 1980 RD4 = 1981 WD2 = 1983 CE1 = 1983 DV  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 20:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin