+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   678 Fredegundis (A909 BQ) Classification: Main-belt Asteroid          SPK-ID: 2000678 [ 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 104 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2194441195529139 3.6331e-08   a 2.573117106380248 7.5722e-09 au q 2.008461688464093 9.3667e-08 au i 6.09439678221938 4.6125e-06 deg node 281.1163972153155 3.5971e-05 deg peri 121.234067149469 3.7476e-05 deg M 47.06602605880319 9.5333e-06 deg tp 2458803.397203956667 (2019-Nov-15.89720396) 3.9878e-05 TDB period 1507.605645034655 4.13 6.6549e-06 1.822e-08 d yr n .2387892358891538 1.0541e-09 deg/d Q 3.137772524296403 9.2339e-09 au   Orbit Determination Parameters    # obs. used (total)      2575      data-arc span      39394 days (107.85 yr)      first obs. used      1913-01-07      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .455      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:55:19   Additional Information  Earth MOID = 1.02545 au   Jupiter MOID = 2.30019 au   T_jup = 3.387  [ 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 9.2   n/a MPO502159 IRAS observations used: 14 diameter diameter 39.585 km 0.581 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 11.61624 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Zeigler, K.W.; Wampole, R.C. (1988) Minor Planet Bull. 15, 15-16.] [Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Stephens, R.D.; Warner, B.D.; Harris, A.W.; Shepard, M.K. (2008) Bull. Amer. Astron. Soc. 40, #28.16.] geometric albedo albedo 0.344   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   SMASSII spectral type spec_B X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 678 Fredegundis (A909 BQ)          Discovered 1909-Jan-22 by Lorenz, W. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2117-Oct-03 14:57 < 00:01 Hygie 0.0392787420196232 0.0392702679851666 0.039287216146281 5.02982198745129 5.02982179188579 2494554.122740926 0.787231599428548 432.798485175085 42.4551919036635 12.8046740890005 33367.7050709866 T 104 CATAB v2.0f-lin.ifort 2020-Dec-18 01:55:25 2020-Dec-18 01:55 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 18:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin