+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305514 (2008 EB167) Classification: Main-belt Asteroid          SPK-ID: 2305514 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1231810575386133 5.3837e-08   a 3.036437835807595 3.0532e-08 au q 2.662406212042557 1.5875e-07 au i 6.807577716621325 6.1933e-06 deg node 59.7102616073202 4.9159e-05 deg peri 88.77486223588434 5.543e-05 deg M 174.1211323976249 2.4339e-05 deg tp 2458265.753170960310 (2018-May-27.25317096) 0.00013099 TDB period 1932.61354219678 5.29 2.9149e-05 7.981e-08 d yr n .1862762482719603 2.8095e-09 deg/d Q 3.410469459572633 3.4292e-08 au   Orbit Determination Parameters    # obs. used (total)      213      data-arc span      9079 days (24.86 yr)      first obs. used      1995-10-15      last obs. used      2020-08-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .6661      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:11:43   Additional Information  Earth MOID = 1.68472 au   Jupiter MOID = 1.63501 au   T_jup = 3.219  [ hide covariance matrix ] Orbital Elements at Epoch 2457450.5 (2016-Mar-03.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1204501014266408 5.3316e-08   q 2.670158689551801 1.5641e-07 au tp 2458255.584263295006 (2018-May-17.08426329) 0.00013584 TDB node 59.96508157451554 4.8821e-05 deg peri 86.94066924582874 5.5682e-05 deg i 6.831680403880826 6.2123e-06 deg   Orbit Determination Parameters    # obs. used (total)      213      data-arc span      9079 days (24.86 yr)      first obs. used      1995-10-15      last obs. used      2020-08-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .6661      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:11:43   Additional Information  Jupiter MOID = 1.63501 au   T_jup = 3.219  Orbit Covariance (6×6)   e q tp node peri i e 2.842601499468915E-15 -8.235879414886167E-15 -1.249518166220212E-12 7.016901002614854E-15 -2.77813631753015E-13 -2.578685119555719E-15 q -8.235879414886167E-15 2.446547282710416E-14 3.795666780635001E-12 -2.363836155863867E-14 7.825678636031959E-13 7.048833323779597E-15 tp -1.249518166220212E-12 3.795666780635001E-12 1.845268668888951E-8 -1.41940738897415E-11 3.66384015261566E-9 2.212111161634524E-12 node 7.016901002614854E-15 -2.363836155863867E-14 -1.41940738897415E-11 2.383467327355514E-9 -2.369151120475644E-9 5.746221833786448E-11 peri -2.77813631753015E-13 7.825678636031959E-13 3.66384015261566E-9 -2.369151120475644E-9 3.100500663449364E-9 -5.660817829836829E-11 i -2.578685119555719E-15 7.048833323779597E-15 2.212111161634524E-12 5.746221833786448E-11 -5.660817829836829E-11 3.859302768515049E-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 16.23   n/a E2021B25   305514 (2008 EB167)          Discovered 2008-Mar-07 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-Apr-13 09:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin