+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   300424 (2007 SG20) Classification: Main-belt Asteroid          SPK-ID: 2300424 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07781033769439508 7.0448e-08   a 2.635887775880233 3.5407e-08 au q 2.430788457914464 1.8435e-07 au i 14.79707464948174 1.2055e-05 deg node 8.563126555572502 2.5757e-05 deg peri 294.4513096621947 8.3306e-05 deg M 65.69335905573593 8.3582e-05 deg tp 2458715.261746197159 (2019-Aug-19.76174620) 0.00036029 TDB period 1563.107334516133 4.28 3.1495e-05 8.623e-08 d yr n .2303104796776093 4.6406e-09 deg/d Q 2.840987093846002 3.8162e-08 au   Orbit Determination Parameters    # obs. used (total)      200      data-arc span      7153 days (19.58 yr)      first obs. used      2001-04-14      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60066      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 06:07:04   Additional Information  Earth MOID = 1.45749 au   Jupiter MOID = 2.39065 au   T_jup = 3.346  [ hide covariance matrix ] Orbital Elements at Epoch 2457491.5 (2016-Apr-13.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07867611583010374 7.0951e-08   q 2.429000775149211 1.8583e-07 au tp 2457155.262548350039 (2015-May-12.76254835) 0.00034392 TDB node 8.62533871755962 2.5725e-05 deg peri 295.2333435275985 8.2479e-05 deg i 14.80709535881929 1.2061e-05 deg   Orbit Determination Parameters    # obs. used (total)      200      data-arc span      7153 days (19.58 yr)      first obs. used      2001-04-14      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60066      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 06:07:04   Additional Information  Jupiter MOID = 2.39065 au   T_jup = 3.346  Orbit Covariance (6×6)   e q tp node peri i e 5.034068797957663E-15 -1.298427193621829E-14 1.127274423936951E-11 -1.263523764461432E-14 2.505437030543462E-12 1.477723491216299E-14 q -1.298427193621829E-14 3.453254918691756E-14 -2.565021044105194E-11 3.177158784285078E-14 -5.661997048163251E-12 -3.390037778334007E-14 tp 1.127274423936951E-11 -2.565021044105194E-11 1.182839489844799E-7 -4.144124419794417E-11 2.697400752269531E-8 5.82025897107413E-11 node -1.263523764461432E-14 3.177158784285078E-14 -4.144124419794417E-11 6.617880024719957E-10 -6.475471440310541E-10 1.366234987254089E-11 peri 2.505437030543462E-12 -5.661997048163251E-12 2.697400752269531E-8 -6.475471440310541E-10 6.802713836141047E-9 1.466316137852965E-13 i 1.477723491216299E-14 -3.390037778334007E-14 5.82025897107413E-11 1.366234987254089E-11 1.466316137852965E-13 1.454766228442358E-10 [ 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 16.1   n/a MPO437338   300424 (2007 SG20)          Discovered 2007-Sep-25 by Mt. Lemmon Survey at Mount Lemmon Reference: 20111012/Numbers.arc Last Updated: 2011-10-13 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 13:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin