+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   312876 (2011 UY177) Classification: Main-belt Asteroid          SPK-ID: 2312876 [ 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 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07536260499219155 8.6237e-08   a 3.115913725307978 5.5169e-08 au q 2.881090350037845 3.058e-07 au i 10.58676326597177 1.1351e-05 deg node 61.81967234851293 3.5823e-05 deg peri 272.7900199266822 8.4621e-05 deg M 304.6295801570552 7.5978e-05 deg tp 2459509.495303845161 (2021-Oct-21.99530385) 0.00042355 TDB period 2008.98439455181 5.50 5.3355e-05 1.461e-07 d yr n .1791950206165306 4.7591e-09 deg/d Q 3.350737100578111 5.9326e-08 au   Orbit Determination Parameters    # obs. used (total)      145      data-arc span      7150 days (19.58 yr)      first obs. used      2000-11-18      last obs. used      2020-06-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .61249      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 06:31:41   Additional Information  Earth MOID = 1.89545 au   Jupiter MOID = 1.94417 au   T_jup = 3.187  [ hide covariance matrix ] Orbital Elements at Epoch 2457875.5 (2017-May-02.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07443740702785034 8.7029e-08   q 2.883821473804567 3.0808e-07 au tp 2457507.133473716522 (2016-Apr-28.63347372) 0.00043159 TDB node 61.82483264788037 3.5802e-05 deg peri 273.7652458617762 8.497e-05 deg i 10.59001291804833 1.1355e-05 deg   Orbit Determination Parameters    # obs. used (total)      145      data-arc span      7150 days (19.58 yr)      first obs. used      2000-11-18      last obs. used      2020-06-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .61249      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 06:31:41   Additional Information  Jupiter MOID = 1.94417 au   T_jup = 3.187  Orbit Covariance (6×6)   e q tp node peri i e 7.57407317313046E-15 -2.66062846540662E-14 1.606025471967932E-11 -1.504134224502055E-14 3.064545306526724E-12 3.362094790528848E-15 q -2.66062846540662E-14 9.491241591309833E-14 -5.348915818196526E-11 5.283824386932665E-14 -1.020926462867438E-11 -1.012599045332506E-14 tp 1.606025471967932E-11 -5.348915818196526E-11 1.862718764228848E-7 5.742008907645121E-11 3.328884924604265E-8 -9.293711048608436E-12 node -1.504134224502055E-14 5.283824386932665E-14 5.742008907645121E-11 1.28175878269952E-9 -1.249751920071169E-9 -1.828454950352074E-10 peri 3.064545306526724E-12 -1.020926462867438E-11 3.328884924604265E-8 -1.249751920071169E-9 7.219950068807593E-9 1.782567791385213E-10 i 3.362094790528848E-15 -1.012599045332506E-14 -9.293711048608436E-12 -1.828454950352074E-10 1.782567791385213E-10 1.289464234133538E-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 15.98   n/a E2021B25   312876 (2011 UY177)          Discovered 2005-Sep-30 by LONEOS at Anderson Mesa Reference: 20120109/Numbers.arc Last Updated: 2012-01-11 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 17:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin