+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   452137 (2015 PZ308) Classification: Main-belt Asteroid          SPK-ID: 2452137 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .212966726651038 6.2588e-08   a 2.435222327968972 2.4213e-08 au q 1.9166010001139 1.3975e-07 au i 3.222002150927923 5.6061e-06 deg node 57.4526193642934 0.00014809 deg peri 232.9554515190994 0.0001511 deg M 121.2671815890333 3.3141e-05 deg tp 2458532.929464497999 (2019-Feb-18.42946450) 0.00012214 TDB period 1388.053969549358 3.80 2.0702e-05 5.668e-08 d yr n .259355909710684 3.8682e-09 deg/d Q 2.953843655824045 2.937e-08 au   Orbit Determination Parameters    # obs. used (total)      184      data-arc span      6034 days (16.52 yr)      first obs. used      2003-04-25      last obs. used      2019-11-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50115      source      ORB      producer      Otto Matic      solution date      2019-Dec-05 02:31:50   Additional Information  Earth MOID = .902466 au   Jupiter MOID = 2.23565 au   T_jup = 3.471  [ hide covariance matrix ] Orbital Elements at Epoch 2457771.5 (2017-Jan-18.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2133181150277784 6.2688e-08   q 1.915188029124317 1.4014e-07 au tp 2457145.914932410256 (2015-May-03.41493241) 0.00010653 TDB node 57.45263507264818 0.00014807 deg peri 233.0787079520255 0.00015108 deg i 3.222849532315946 5.6105e-06 deg   Orbit Determination Parameters    # obs. used (total)      184      data-arc span      6034 days (16.52 yr)      first obs. used      2003-04-25      last obs. used      2019-11-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50115      source      ORB      producer      Otto Matic      solution date      2019-Dec-05 02:31:50   Additional Information  Jupiter MOID = 2.23565 au   T_jup = 3.471  Orbit Covariance (6×6)   e q tp node peri i e 3.929760760270023E-15 -8.74466116528376E-15 4.839768673946168E-12 1.370540142368821E-13 1.257445280767231E-12 -1.497247531192726E-14 q -8.74466116528376E-15 1.964060527181701E-14 -1.035113728036407E-11 -3.140431671921666E-13 -2.63757774225221E-12 3.302596698942112E-14 tp 4.839768673946168E-12 -1.035113728036407E-11 1.134781170252169E-8 1.75667053536093E-10 3.275096588942048E-9 -2.618587504120114E-11 node 1.370540142368821E-13 -3.140431671921666E-13 1.75667053536093E-10 2.192536634294985E-8 -2.184169717627351E-8 -5.332764775868124E-10 peri 1.257445280767231E-12 -2.63757774225221E-12 3.275096588942048E-9 -2.184169717627351E-8 2.282586554714246E-8 5.24730434951124E-10 i -1.497247531192726E-14 3.302596698942112E-14 -2.618587504120114E-11 -5.332764775868124E-10 5.24730434951124E-10 3.147825136232112E-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 17.4   n/a MPO347408   452137 (2015 PZ308)          Discovered 2003-Apr-25 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-11-30 Alternate Designations  2015 PZ308 = 2007 KG5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-19 03:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin