+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   329 Svea (A892 FG) Classification: Main-belt Asteroid          SPK-ID: 2000329 [ 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 60 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02437651600348508 3.0768e-08   a 2.476869009986653 6.2574e-09 au q 2.416491572926176 7.8568e-08 au i 15.87905503041758 3.2828e-06 deg node 178.464660970922 1.3133e-05 deg peri 54.91734426176664 7.9324e-05 deg M 277.4964098291753 7.8237e-05 deg tp 2459326.804702500982 (2021-Apr-22.30470250) 0.00030962 TDB period 1423.813105067681 3.90 5.3955e-06 1.477e-08 d yr n .2528421733994978 9.5814e-10 deg/d Q 2.537246447047128 6.4099e-09 au   Orbit Determination Parameters    # obs. used (total)      3216      data-arc span      46826 days (128.20 yr)      first obs. used      1892-03-21      last obs. used      2020-06-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41569      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 15:12:02   Additional Information  Earth MOID = 1.43269 au   Jupiter MOID = 2.43755 au   T_jup = 3.428  [ 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 9.6   n/a MPO421628   diameter diameter 81.057 km 0.500 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 22.778 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Menke, J.; Cooney, W.; Gross, J.; Terrell, D. (2008) Minor Planet Bull. 35, 155-160.] [Marciniak, A.; Pilcher, F.; Oszkiewicz, D.; Santana-Ros, T.; et al. (2015) Planet. Space Sci. 118, 256-266.] [Marciniak, A.; Bartczak, P.; Muller, T.; Sanabria, J.J.; et al. (2018) Astron. Astrophys. 610, A7.] geometric albedo albedo 0.039   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.698   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=9.70, mean=10.26, max.=10.81) deg. U-B UB 0.331   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=9.70, mean=10.26, max.=10.81) deg. Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices 329 Svea (A892 FG)          Discovered 1892-Mar-21 by Wolf, M. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-22 13:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin