+ 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 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1097222819747727 8.2379e-08   a 2.68075608551195 2.9147e-08 au q 2.386617410391819 2.2299e-07 au i 1.796724069294367 6.7939e-06 deg node 291.4345792841134 0.0003449 deg peri 219.1342798103773 0.00034841 deg M 197.0986335094458 4.6362e-05 deg tp 2459725.948528800549 (2022-May-26.44852880) 0.00021056 TDB period 1603.187720241383 4.39 2.6147e-05 7.159e-08 d yr n .2245526181711253 3.6623e-09 deg/d Q 2.97489476063208 3.2345e-08 au   Orbit Determination Parameters    # obs. used (total)      107      data-arc span      7581 days (20.76 yr)      first obs. used      2000-01-13      last obs. used      2020-10-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60682      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 16:28:14   Additional Information  Earth MOID = 1.39789 au   Jupiter MOID = 2.02498 au   T_jup = 3.367  [ hide covariance matrix ] Orbital Elements at Epoch 2457184.5 (2015-Jun-11.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1077185934771835 8.2418e-08   q 2.393707729728067 2.2276e-07 au tp 2456515.449081033782 (2013-Aug-10.94908103) 0.00020241 TDB node 291.5608474357517 0.00034567 deg peri 218.7430657804613 0.00034933 deg i 1.79362218323416 6.7863e-06 deg   Orbit Determination Parameters    # obs. used (total)      107      data-arc span      7581 days (20.76 yr)      first obs. used      2000-01-13      last obs. used      2020-10-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60682      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 16:28:14   Additional Information  Jupiter MOID = 2.02498 au   T_jup = 3.367  Orbit Covariance (6×6)   e q tp node peri i e 6.792692995159014E-15 -1.823379893136915E-14 4.753510788779476E-12 -8.519315437835672E-16 9.048960469463797E-13 -2.905161620508015E-15 q -1.823379893136915E-14 4.962303035296577E-14 -1.200576873570489E-11 1.588975210754074E-15 -2.185117410910542E-12 7.851622960767444E-15 tp 4.753510788779476E-12 -1.200576873570489E-11 4.097062418815328E-8 -3.323021105103841E-10 1.035020914132087E-8 -1.085051109971247E-11 node -8.519315437835672E-16 1.588975210754074E-15 -3.323021105103841E-10 1.194876386504691E-7 -1.195110726460825E-7 2.998940104926679E-10 peri 9.048960469463797E-13 -2.185117410910542E-12 1.035020914132087E-8 -1.195110726460825E-7 1.220328295477481E-7 -3.023410540280077E-10 i -2.905161620508015E-15 7.851622960767444E-15 -1.085051109971247E-11 2.998940104926679E-10 -3.023410540280077E-10 4.605404097649036E-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 ] 2021-Jan-26 19:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin