+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   392056 (2009 BO172) Classification: Main-belt Asteroid          SPK-ID: 2392056 [ 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 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1097222298082788 1.1766e-07   a 2.680756066340302 3.7101e-08 au q 2.386617533169374 3.0275e-07 au i 1.796723749226083 7.4766e-06 deg node 291.4346356480144 0.00034837 deg peri 219.1342821966431 0.00036246 deg M 197.0985911933227 7.733e-05 deg tp 2459725.948709464747 (2022-May-26.44870946) 0.00033949 TDB period 1603.187703043389 4.39 3.3281e-05 9.112e-08 d yr n .2245526205799851 4.6616e-09 deg/d Q 2.97489459951123 4.1171e-08 au   Orbit Determination Parameters    # obs. used (total)      101      data-arc span      6640 days (18.18 yr)      first obs. used      2000-01-13      last obs. used      2018-03-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61493      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 12:05:50   Additional Information  Earth MOID = 1.39789 au   Jupiter MOID = 2.02498 au   T_jup = 3.367  [ hide covariance matrix ] Orbital Elements at Epoch 2456836.5 (2014-Jun-28.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1077418125382184 1.1755e-07   q 2.393011474046954 3.0228e-07 au tp 2456514.915872395461 (2013-Aug-10.41587240) 0.00037436 TDB node 291.5607693441322 0.00034914 deg peri 218.5934769386259 0.00036369 deg i 1.793851988757395 7.4684e-06 deg   Orbit Determination Parameters    # obs. used (total)      101      data-arc span      6640 days (18.18 yr)      first obs. used      2000-01-13      last obs. used      2018-03-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61493      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 12:05:50   Additional Information  Jupiter MOID = 2.02498 au   T_jup = 3.367  Orbit Covariance (6×6)   e q tp node peri i e 1.381872806878163E-14 -3.536187336399798E-14 -2.166808095922291E-11 2.563443286431144E-13 -6.562863071881599E-12 5.375763842859186E-16 q -3.536187336399798E-14 9.137397938978701E-14 5.245179314477298E-11 -6.318210280735535E-13 1.603886894873219E-11 -2.238108548361879E-16 tp -2.166808095922291E-11 5.245179314477298E-11 1.401421062287225E-7 -1.123703885582218E-9 3.8208575701153E-8 -3.529865041909697E-11 node 2.563443286431144E-13 -6.318210280735535E-13 -1.123703885582218E-9 1.219004497749778E-7 -1.221412983634877E-7 1.523115190080028E-10 peri -6.562863071881599E-12 1.603886894873219E-11 3.8208575701153E-8 -1.221412983634877E-7 1.322678549190895E-7 -1.613300379091358E-10 i 5.375763842859186E-16 -2.238108548361879E-16 -3.529865041909697E-11 1.523115190080028E-10 -1.613300379091358E-10 5.57772519585609E-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 17.7   n/a MPO437605   392056 (2009 BO172)          Discovered 2009-Jan-18 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2014-04-17 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-02 20:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin