+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1210 Morosovia (1931 LB) Classification: Main-belt Asteroid          SPK-ID: 2001210 [ 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 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06170173373761226 3.8092e-08   a 3.012221871812359 1.394e-08 au q 2.826362559919181 1.1793e-07 au i 11.27319890368238 4.2277e-06 deg node 106.6184405850106 2.1172e-05 deg peri 168.7537335109104 4.0716e-05 deg M 352.0740655548727 3.4264e-05 deg tp 2459042.541367928967 (2020-Jul-12.04136793) 0.00018171 TDB period 1909.540453458201 5.23 1.3256e-05 3.629e-08 d yr n .1885270350507818 1.3087e-09 deg/d Q 3.198081183705538 1.48e-08 au   Orbit Determination Parameters    # obs. used (total)      2590      data-arc span      42599 days (116.63 yr)      first obs. used      1904-03-21      last obs. used      2020-11-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43095      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:59:09   Additional Information  Earth MOID = 1.81076 au   Jupiter MOID = 1.93048 au   T_jup = 3.217  [ 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 10.0   n/a MPO473779 IRAS observations used: 19 diameter diameter 33.663 km 0.329 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 15.2616 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Di Martino, M. (1986) in Asteroids, Comets, Meteors II. C.-I. Lagerkvist, B.A. Lindblad, M. Lundstedt, H. Rickman, eds. Uppsala, pp. 81-84.] [Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2016) Astron. Astrophys., submitted.] [Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2018) Icarus 299, 84-96.] geometric albedo albedo 0.132   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.830   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=14.71 deg. Tholen spectral type spec_T MU:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 1 color indices; used ground-based radiometric albedo 1210 Morosovia (1931 LB)          Discovered 1931-Jun-06 by Neujmin, G. at Simeis Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1931 LB = 1927 SK = A904 GA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 13:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin