+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11842 Kap'bos (1987 BR1) Classification: Main-belt Asteroid          SPK-ID: 2011842 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09472066080106499 3.2955e-08   a 2.250168265998545 6.478e-09 au q 2.037030840929576 7.6325e-08 au i 3.691534312426601 3.2931e-06 deg node 272.782954111081 5.9335e-05 deg peri 172.9163009321933 6.3454e-05 deg M 346.7203240360623 2.2414e-05 deg tp 2459045.978475427498 (2020-Jul-15.47847543) 7.6821e-05 TDB period 1232.880320149371 3.38 5.324e-06 1.458e-08 d yr n .291999145510234 1.261e-09 deg/d Q 2.463305691067514 7.0917e-09 au   Orbit Determination Parameters    # obs. used (total)      2113      data-arc span      12351 days (33.82 yr)      first obs. used      1987-01-22      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49711      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:47:14   Additional Information  Earth MOID = 1.05333 au   Jupiter MOID = 2.69094 au   T_jup = 3.619  [ 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 14.0   n/a MPO296233   rotation period rot_per 3.68578 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Vokrouhlicky, D.; Polishook, D.; Scheeres, D.J.; et al. (2010) Nature 466, 1085-1088. Lightcurve plots as supplemental data, http://www.Nature.com/nature] [Pravec, P.; Fatka, P.; Vokrouhlicky, D.; Scheeres, D.J.; et al. (2018) Icarus 304, 110-126.] 11842 Kap'bos           Discovered 1987 Jan. 22 by E. W. Elst at the European Southern Observatory Kap'bos is a small village, about 20 km east of the city of Antwerp. In 1936 the discoverer was born there. It is currently the site of the Holbach Foundation. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010804/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-25 23:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin