+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07516922784376227 8.6546e-08   a 3.114164486132229 5.5223e-08 au q 2.880075146331202 3.0633e-07 au i 10.59009425732517 1.1355e-05 deg node 61.82488292394287 3.5811e-05 deg peri 273.1817502315435 8.4526e-05 deg M 268.3693915934953 7.6004e-05 deg tp 2459511.415193519681 (2021-Oct-23.91519352) 0.00042312 TDB period 2007.292899891171 5.50 5.3392e-05 1.462e-07 d yr n .1793460237016322 4.7704e-09 deg/d Q 3.348253825933255 5.9374e-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.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61177      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 18:45:42   Additional Information  Earth MOID = 1.89639 au   Jupiter MOID = 1.94844 au   T_jup = 3.187  [ hide covariance matrix ] Orbital Elements at Epoch 2457875.5 (2017-May-02.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07443740969484586 8.7029e-08   q 2.883821462513848 3.0808e-07 au tp 2457507.133478284132 (2016-Apr-28.63347828) 0.00043159 TDB node 61.82483273858987 3.5802e-05 deg peri 273.7652463513583 8.497e-05 deg i 10.59001289596011 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.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61177      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 18:45:42   Additional Information  Jupiter MOID = 1.94844 au   T_jup = 3.187  Orbit Covariance (6×6)   e q tp node peri i e 7.574074026003409E-15 -2.660629006770725E-14 1.606025776716034E-11 -1.504136218687553E-14 3.064545729709422E-12 3.362104637526966E-15 q -2.660629006770725E-14 9.491244426051368E-14 -5.3489183912123E-11 5.283829350396976E-14 -1.020926868387188E-11 -1.012602158748983E-14 tp 1.606025776716034E-11 -5.3489183912123E-11 1.862718663558371E-7 5.742001189503932E-11 3.328884649226345E-8 -9.293708226868947E-12 node -1.504136218687553E-14 5.283829350396976E-14 5.742001189503932E-11 1.281758791189503E-9 -1.249751945633556E-9 -1.828454958706462E-10 peri 3.064545729709422E-12 -1.020926868387188E-11 3.328884649226345E-8 -1.249751945633556E-9 7.219949438517103E-9 1.782567813782499E-10 i 3.362104637526966E-15 -1.012602158748983E-14 -9.293708226868947E-12 -1.828454958706462E-10 1.782567813782499E-10 1.289464222876539E-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 15.8   n/a MPO397108   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-Jan-16 16:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin