+ 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 41 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06170173288150788 3.8135e-08   a 3.012221872688031 1.4061e-08 au q 2.826362563319598 1.1815e-07 au i 11.27319893382641 4.2281e-06 deg node 106.6184380321653 2.1471e-05 deg peri 168.7537384025897 4.116e-05 deg M 352.0740627193684 3.4757e-05 deg tp 2459042.541382987606 (2020-Jul-12.04138299) 0.00018433 TDB period 1909.540454290873 5.23 1.3371e-05 3.661e-08 d yr n .188527034968573 1.3201e-09 deg/d Q 3.198081182056463 1.4929e-08 au   Orbit Determination Parameters    # obs. used (total)      2523      data-arc span      42499 days (116.36 yr)      first obs. used      1904-03-21      last obs. used      2020-07-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43585      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 22:30:15   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. 2019-August); 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 ] 2020-Oct-20 03:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin