+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305349 (2008 BG7) Classification: Main-belt Asteroid          SPK-ID: 2305349 [ 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 .14346584813503 7.6123e-08   a 2.752902604402216 4.406e-08 au q 2.357955097428519 2.1933e-07 au i 8.758257893209482 8.9141e-06 deg node 295.6674135455837 6.0309e-05 deg peri 141.2721443529803 7.9398e-05 deg M 295.4994308209558 4.8269e-05 deg tp 2459299.413646849991 (2021-Mar-25.91364685) 0.00022672 TDB period 1668.340515992814 4.57 4.0053e-05 1.097e-07 d yr n .2157832867745032 5.1804e-09 deg/d Q 3.147850111375913 5.0382e-08 au   Orbit Determination Parameters    # obs. used (total)      125      data-arc span      5165 days (14.14 yr)      first obs. used      2002-12-06      last obs. used      2017-01-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53619      source      ORB      producer      Otto Matic      solution date      2017-Apr-10 13:24:46   Additional Information  Earth MOID = 1.38081 au   Jupiter MOID = 2.09606 au   T_jup = 3.313  [ hide covariance matrix ] Orbital Elements at Epoch 2456741.5 (2014-Mar-25.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1426295616301667 7.3924e-08   q 2.36190308416221 2.1271e-07 au tp 2455952.017663410989 (2012-Jan-25.51766341) 0.00020681 TDB node 295.9083105782726 6.051e-05 deg peri 139.6869862776025 8.0036e-05 deg i 8.737943723933855 8.9027e-06 deg   Orbit Determination Parameters    # obs. used (total)      125      data-arc span      5165 days (14.14 yr)      first obs. used      2002-12-06      last obs. used      2017-01-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53619      source      ORB      producer      Otto Matic      solution date      2017-Apr-10 13:24:46   Additional Information  Jupiter MOID = 2.09606 au   T_jup = 3.313  Orbit Covariance (6×6)   e q tp node peri i e 5.464822416842954E-15 -1.547727711554117E-14 4.842803802559242E-12 -8.94516159945543E-14 1.40988549564018E-12 -8.643537929142532E-15 q -1.547727711554117E-14 4.524705540299166E-14 -1.229152727323471E-11 2.359141497384196E-13 -3.488254207367839E-12 3.084957614468266E-14 tp 4.842803802559242E-12 -1.229152727323471E-11 4.276862944062441E-8 -2.023455136652754E-10 1.089413201097896E-8 3.540161059832899E-11 node -8.94516159945543E-14 2.359141497384196E-13 -2.023455136652754E-10 3.661456066555957E-9 -3.669546578731952E-9 1.553426533114973E-10 peri 1.40988549564018E-12 -3.488254207367839E-12 1.089413201097896E-8 -3.669546578731952E-9 6.405762935956456E-9 -1.447044685149344E-10 i -8.643537929142532E-15 3.084957614468266E-14 3.540161059832899E-11 1.553426533114973E-10 -1.447044685149344E-10 7.925846912683603E-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 16.6   n/a MPO455250   305349 (2008 BG7)          Discovered 2008-Jan-16 by Spacewatch at Kitt Peak Reference: 20111110/Numbers.arc Last Updated: 2011-11-14 [ show close-approach data ] Alternate Designations  2008 BG7 = 2002 XA41  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-11 14:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin