+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305357 (2008 BA28) Classification: Main-belt Asteroid          SPK-ID: 2305357 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07974307030974478 4.5152e-08   a 3.108088995912331 3.8418e-08 au q 2.86024043658235 1.5242e-07 au i 9.379369194916173 4.6521e-06 deg node 127.5720366213811 3.9141e-05 deg peri 191.5009204397058 5.607e-05 deg M 258.1269113976733 4.2201e-05 deg tp 2459566.863905751683 (2021-Dec-18.36390575) 0.00023858 TDB period 2001.421659713466 5.48 3.7109e-05 1.016e-07 d yr n .1798721415114192 3.335e-09 deg/d Q 3.355937555242313 4.1482e-08 au   Orbit Determination Parameters    # obs. used (total)      228      data-arc span      5880 days (16.10 yr)      first obs. used      2004-04-19      last obs. used      2020-05-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51505      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:12:20   Additional Information  Earth MOID = 1.84747 au   Jupiter MOID = 1.91482 au   T_jup = 3.194  [ hide covariance matrix ] Orbital Elements at Epoch 2457737.5 (2016-Dec-15.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07868740081052285 4.5164e-08   q 2.865881239086539 1.5246e-07 au tp 2457564.829414605759 (2016-Jun-25.32941461) 0.00022969 TDB node 127.5859502178772 3.9148e-05 deg peri 191.6116054498926 5.6454e-05 deg i 9.376256774568491 4.6504e-06 deg   Orbit Determination Parameters    # obs. used (total)      228      data-arc span      5880 days (16.10 yr)      first obs. used      2004-04-19      last obs. used      2020-05-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51505      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:12:20   Additional Information  Jupiter MOID = 1.91482 au   T_jup = 3.194  Orbit Covariance (6×6)   e q tp node peri i e 2.039821498060125E-15 -6.706884517672252E-15 2.201213624057916E-12 2.030822690812304E-15 4.168099005622417E-13 9.013660870016831E-16 q -6.706884517672252E-15 2.324543756217845E-14 -4.782062353446021E-12 1.376842881490543E-16 -9.303733345759681E-13 -2.125754104738005E-16 tp 2.201213624057916E-12 -4.782062353446021E-12 5.275889386067481E-8 2.131208556885878E-12 9.420110423389617E-9 1.284501797477578E-11 node 2.030822690812304E-15 1.376842881490543E-16 2.131208556885878E-12 1.532595532083252E-9 -1.511169249899099E-9 3.929011347800376E-11 peri 4.168099005622417E-13 -9.303733345759681E-13 9.420110423389617E-9 -1.511169249899099E-9 3.187063629218598E-9 -3.645967422793113E-11 i 9.013660870016831E-16 -2.125754104738005E-16 1.284501797477578E-11 3.929011347800376E-11 -3.645967422793113E-11 2.162641836898074E-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 15.6   n/a MPO433967   305357 (2008 BA28)          Discovered 2008-Jan-30 by Mt. Lemmon Survey at Mount Lemmon Reference: 20111110/Numbers.arc Last Updated: 2011-11-14 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 08:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin