+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   242 Kriemhild (A884 SA) Classification: Main-belt Asteroid          SPK-ID: 2000242 [ 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 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .121666573453178 3.4846e-08   a 2.861050859581358 9.8245e-09 au q 2.512956605020825 1.0128e-07 au i 11.35143179879021 4.1384e-06 deg node 206.9095943730566 1.9065e-05 deg peri 279.3236689932008 2.5281e-05 deg M 276.3860815422888 1.7228e-05 deg tp 2459411.046987618595 (2021-Jul-15.54698762) 8.5029e-05 TDB period 1767.611400934934 4.84 9.1047e-06 2.493e-08 d yr n .2036646741526938 1.049e-09 deg/d Q 3.209145114141891 1.102e-08 au   Orbit Determination Parameters    # obs. used (total)      3232      data-arc span      49619 days (135.85 yr)      first obs. used      1885-01-09      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41387      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:52:02   Additional Information  Earth MOID = 1.55813 au   Jupiter MOID = 1.95914 au   T_jup = 3.262  [ 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 9.3   n/a MPO347512   diameter diameter 40.802 km 0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 4.5478 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Warner, B.D. (2005) Minor Planet Bull. 32, 4-7.] [Bembrick, C.; Crawford, G.; Oey, J.; Allen, B. (2007) Minor Planet Bull. 34, 67-68.] [Ditteon, R.; Hawkins, S. (2007) Minor Planet Bull. 34, 59-64.] [Fauerbach, M.; Bennett, T.; Marks, S.A. (2007) Minor Planet Bull. 34, 57-58.] [Fauerbach, M.; Marks, S.A.; Lucas, M.P. (2008) Minor Planet Bull. 35, 44-46.] [Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] [Aznar, A.M. (2017) Minor Planet Bull. 44, 276-279.] [Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.222   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   SMASSII spectral type spec_B Xc   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) 242 Kriemhild (A884 SA)          Discovered 1884-Sep-22 by Palisa, J. at Vienna 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 ] 2021-Jan-26 13:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin