+ 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 ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09485434607563396 1.6941e-08   a 2.250090557274796 5.2002e-09 au q 2.036659688853536 3.8618e-08 au i 3.691209330868341 7.1654e-07 deg node 272.7767299885135 1.2119e-05 deg peri 172.7946997105073 1.7525e-05 deg M 102.4563350137471 1.0769e-05 deg tp 2459045.639289625515 (2020-Jul-15.13928963) 3.6586e-05 TDB period 1232.81645510614 3.38 4.2737e-06 1.17e-08 d yr n .2920142722859793 1.0123e-09 deg/d Q 2.463521425696055 5.6934e-09 au   Orbit Determination Parameters    # obs. used (total)      2549      data-arc span      12571 days (34.42 yr)      first obs. used      1987-01-22      last obs. used      2021-06-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47382      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 02:48:50   Additional Information  Earth MOID = 1.05294 au   Jupiter MOID = 2.69079 au   T_jup = 3.619  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.11   n/a MPCxxxxx   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 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Aug-02 06:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin