+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   447258 (2005 UC311) Classification: Main-belt Asteroid          SPK-ID: 2447258 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05565116346949742 1.1725e-07   a 2.968777230641511 4.204e-08 au q 2.803561323674558 3.6947e-07 au i 5.257237145013499 8.958e-06 deg node 182.7654440642199 6.5831e-05 deg peri 163.6435490641964 0.00012659 deg M 23.17452916212045 9.8599e-05 deg tp 2459080.225582803197 (2020-Aug-18.72558280) 0.00051243 TDB period 1868.378420460956 5.12 3.9687e-05 1.087e-07 d yr n .1926804527699388 4.0928e-09 deg/d Q 3.133993137608464 4.438e-08 au   Orbit Determination Parameters    # obs. used (total)      102      data-arc span      6407 days (17.54 yr)      first obs. used      2003-04-01      last obs. used      2020-10-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62438      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 07:53:00   Additional Information  Earth MOID = 1.79519 au   Jupiter MOID = 2.11745 au   T_jup = 3.255  [ hide covariance matrix ] Orbital Elements at Epoch 2458194.5 (2018-Mar-17.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05881201927038313 1.1819e-07   q 2.794381664742337 3.7346e-07 au tp 2459080.639663796176 (2020-Aug-19.13966380) 0.00048148 TDB node 182.959914821378 6.5748e-05 deg peri 163.8634103322102 0.00012153 deg i 5.260356690277076 8.9663e-06 deg   Orbit Determination Parameters    # obs. used (total)      102      data-arc span      6407 days (17.54 yr)      first obs. used      2003-04-01      last obs. used      2020-10-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62438      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 07:53:00   Additional Information  Jupiter MOID = 2.11745 au   T_jup = 3.255  Orbit Covariance (6×6)   e q tp node peri i e 1.396918735764668E-14 -4.395311049505259E-14 3.893904430837364E-11 -2.294448093421933E-14 8.562743176329541E-12 1.357670307976151E-14 q -4.395311049505259E-14 1.39474079823645E-13 -1.211868735846226E-10 7.008972135173374E-14 -2.678462962268359E-11 -4.046251579440046E-14 tp 3.893904430837364E-11 -1.211868735846226E-10 2.318253248907826E-7 -1.08003326043378E-10 4.91838788276725E-8 9.5827715571355E-11 node -2.294448093421933E-14 7.008972135173374E-14 -1.08003326043378E-10 4.32275213386048E-9 -4.326692839176849E-9 3.437826866118531E-11 peri 8.562743176329541E-12 -2.678462962268359E-11 4.91838788276725E-8 -4.326692839176849E-9 1.476908043702949E-8 -1.439789144995633E-11 i 1.357670307976151E-14 -4.046251579440046E-14 9.5827715571355E-11 3.437826866118531E-11 -1.439789144995633E-11 8.039497592458619E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.0   n/a MPO477127   447258 (2005 UC311)          Discovered 2005-Oct-29 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2015-10-28 Alternate Designations  2005 UC311 = 2010 TO96  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-11 20:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin