+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2427 Kobzar (1976 YQ7) Classification: Main-belt Asteroid          SPK-ID: 2002427 [ 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 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1644132204435462 3.6111e-08   a 2.742602988553467 1.0879e-08 au q 2.291682798807297 9.9123e-08 au i 4.157807131082216 4.0413e-06 deg node 227.5795247631345 4.8994e-05 deg peri 171.1169141673257 5.0233e-05 deg M 246.9879622330906 1.2752e-05 deg tp 2459521.292893492033 (2021-Nov-02.79289349) 6.0591e-05 TDB period 1658.986470484022 4.54 9.8711e-06 2.703e-08 d yr n .2169999613649455 1.2912e-09 deg/d Q 3.193523178299637 1.2668e-08 au   Orbit Determination Parameters    # obs. used (total)      2311      data-arc span      24450 days (66.94 yr)      first obs. used      1953-12-02      last obs. used      2020-11-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46688      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:06:16   Additional Information  Earth MOID = 1.29953 au   Jupiter MOID = 2.22054 au   T_jup = 3.326  [ 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 12.7   n/a MPO384771   diameter diameter 7.989 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.194   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   SMASSII spectral type spec_B Sq   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) 2427 Kobzar (1976 YQ7)          Discovered 1976-Dec-20 by Chernykh, N. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1976 YQ7 = 1953 VG = 1953 XS = 1971 TP = 1980 UN  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 20:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin