+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100055 (1992 BK4) Classification: Main-belt Asteroid          SPK-ID: 2100055 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07761487618063057 4.5375e-08   a 2.53909243147878 1.2941e-08 au q 2.342021086798378 1.1549e-07 au i 2.792801258791349 4.6218e-06 deg node 22.89506533017936 0.00012067 deg peri 41.64588200800353 0.00012565 deg M 102.1164302752668 3.687e-05 deg tp 2458781.311541139324 (2019-Oct-24.81154114) 0.0001509 TDB period 1477.80180704568 4.05 1.1298e-05 3.093e-08 d yr n .243605061438981 1.8624e-09 deg/d Q 2.736163776159182 1.3946e-08 au   Orbit Determination Parameters    # obs. used (total)      565      data-arc span      10638 days (29.13 yr)      first obs. used      1992-01-29      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52161      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:30:23   Additional Information  Earth MOID = 1.35542 au   Jupiter MOID = 2.4717 au   T_jup = 3.441  [ hide covariance matrix ] Orbital Elements at Epoch 2456528.5 (2013-Aug-24.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07629200825486583 4.5041e-08   q 2.345795075571651 1.1436e-07 au tp 2455821.817745803485 (2011-Sep-17.31774580) 0.00015325 TDB node 22.94266051022091 0.00012056 deg peri 40.92315471024266 0.00012581 deg i 2.795254542787939 4.6221e-06 deg   Orbit Determination Parameters    # obs. used (total)      565      data-arc span      10638 days (29.13 yr)      first obs. used      1992-01-29      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52161      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:30:23   Additional Information  Jupiter MOID = 2.4717 au   T_jup = 3.441  Orbit Covariance (6×6)   e q tp node peri i e 2.0287310846147E-15 -5.123265934172265E-15 1.454412745877668E-12 3.500137816353759E-14 3.546373773428367E-13 -2.239334355275797E-16 q -5.123265934172265E-15 1.307923617421326E-14 -3.701909563277515E-12 -9.158335404918812E-14 -8.882147896087204E-13 7.011676401995981E-16 tp 1.454412745877668E-12 -3.701909563277515E-12 2.348551775327351E-8 1.233528986510102E-10 5.55415419305949E-9 4.420420066056183E-12 node 3.500137816353759E-14 -9.158335404918812E-14 1.233528986510102E-10 1.453510213782571E-8 -1.448744684198856E-8 -7.051100636852227E-11 peri 3.546373773428367E-13 -8.882147896087204E-13 5.55415419305949E-9 -1.448744684198856E-8 1.582744422889276E-8 7.148909110989429E-11 i -2.239334355275797E-16 7.011676401995981E-16 4.420420066056183E-12 -7.051100636852227E-11 7.148909110989429E-11 2.136395994562001E-11 [ 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 15.4   n/a MPO453455   100055 (1992 BK4)          Discovered 1992-Jan-29 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1992 BK4 = 2000 AO29  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 17:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin