+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   212337 (2005 SD273) Classification: Outer Main-belt Asteroid          SPK-ID: 2212337 [ 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 .1571898355110531 8.678e-08   a 3.984351770861092 1.0876e-07 au q 3.358052171381264 4.0135e-07 au i .8610785360915386 7.3226e-06 deg node 39.12114349321011 0.00055438 deg peri 253.6221066867006 0.00055525 deg M 32.04040565443405 3.9989e-05 deg tp 2458741.958393087544 (2019-Sep-15.45839309) 0.00031599 TDB period 2904.925096527413 7.95 0.00011894 3.256e-07 d yr n .1239274638889481 5.0741e-09 deg/d Q 4.61065137034092 1.2585e-07 au   Orbit Determination Parameters    # obs. used (total)      186      data-arc span      5903 days (16.16 yr)      first obs. used      2002-03-16      last obs. used      2018-05-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61405      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 07:50:25   Additional Information  Earth MOID = 2.34205 au   Jupiter MOID = .595545 au   T_jup = 3.034  [ hide covariance matrix ] Orbital Elements at Epoch 2456947.5 (2014-Oct-17.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1656544581601258 8.3206e-08   q 3.311098346273532 3.8261e-07 au tp 2455865.793247934057 (2011-Oct-31.29324793) 0.00026752 TDB node 39.18111312163382 0.00054488 deg peri 256.5193282509431 0.00054567 deg i .8759422275129566 7.359e-06 deg   Orbit Determination Parameters    # obs. used (total)      186      data-arc span      5903 days (16.16 yr)      first obs. used      2002-03-16      last obs. used      2018-05-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61405      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 07:50:25   Additional Information  Jupiter MOID = .595545 au   T_jup = 3.034  Orbit Covariance (6×6)   e q tp node peri i e 6.923192487937032E-15 -3.125594649061033E-14 -2.192548417247772E-12 -3.607525552527324E-14 -2.685707158142557E-13 6.839184842600776E-16 q -3.125594649061033E-14 1.46389922281177E-13 1.455502112452089E-11 1.914533491134576E-13 1.954847265961128E-12 -2.68360873560905E-15 tp -2.192548417247772E-12 1.455502112452089E-11 7.156443928204364E-8 1.069797319029927E-10 7.989818885957907E-9 7.311832236632041E-13 node -3.607525552527324E-14 1.914533491134576E-13 1.069797319029927E-10 2.968994292913654E-7 -2.968507323658898E-7 -6.474678512477345E-10 peri -2.685707158142557E-13 1.954847265961128E-12 7.989818885957907E-9 -2.968507323658898E-7 2.977611430054451E-7 6.47480830651817E-10 i 6.839184842600776E-16 -2.68360873560905E-15 7.311832236632041E-13 -6.474678512477345E-10 6.47480830651817E-10 5.415515006741663E-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 14.8   n/a MPO440125   212337 (2005 SD273)          Discovered 2005-Sep-30 by Mt. Lemmon Survey at Mount Lemmon Reference: 20090409/Numbers.arc Last Updated: 2009-04-10 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-04 21:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin