+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100054 (1992 BG4) Classification: Main-belt Asteroid          SPK-ID: 2100054 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07839845936266583 5.2243e-08   a 2.222129069482242 9.7844e-09 au q 2.04791757392984 1.117e-07 au i 5.38824243129906 3.9852e-06 deg node 101.0107731086617 6.078e-05 deg peri 59.17343045041778 7.2878e-05 deg M 167.1839631917496 4.0209e-05 deg tp 2458438.618848896260 (2018-Nov-16.11884890) 0.00013326 TDB period 1209.907999162259 3.31 7.9911e-06 2.188e-08 d yr n .2975432844887911 1.9652e-09 deg/d Q 2.396340565034643 1.0551e-08 au   Orbit Determination Parameters    # obs. used (total)      492      data-arc span      10491 days (28.72 yr)      first obs. used      1992-01-01      last obs. used      2020-09-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57624      source      ORB      producer      Otto Matic      solution date      2020-Oct-22 19:35:33   Additional Information  Earth MOID = 1.06303 au   Jupiter MOID = 2.58636 au   T_jup = 3.639  [ 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 16.6   n/a MPO329683   100054 (1992 BG4)          Discovered 1992-Jan-29 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-26 20:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin