+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78338 (2002 PR88) Classification: Main-belt Asteroid          SPK-ID: 2078338 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1899533277921231 4.3675e-08   a 2.570052925359767 1.1009e-08 au q 2.081862819585798 1.1517e-07 au i 4.43809258644584 4.1955e-06 deg node 55.06203628694725 4.8138e-05 deg peri 33.01791705584417 4.901e-05 deg M 72.81329601919447 8.5675e-06 deg tp 2458896.117473858639 (2020-Feb-16.61747386) 3.5431e-05 TDB period 1504.913462261122 4.12 9.6694e-06 2.647e-08 d yr n .2392164127890135 1.537e-09 deg/d Q 3.058243031133736 1.31e-08 au   Orbit Determination Parameters    # obs. used (total)      763      data-arc span      8205 days (22.46 yr)      first obs. used      1998-09-27      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51845      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 13:36:18   Additional Information  Earth MOID = 1.09953 au   Jupiter MOID = 2.16597 au   T_jup = 3.400  [ hide covariance matrix ] Orbital Elements at Epoch 2457317.5 (2015-Oct-22.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1880173424382563 4.3694e-08   q 2.08740619544714 1.15e-07 au tp 2457391.183332282796 (2016-Jan-03.68333228) 3.5798e-05 TDB node 55.0974873732747 4.8178e-05 deg peri 33.15167462411097 4.9074e-05 deg i 4.436496097845137 4.1906e-06 deg   Orbit Determination Parameters    # obs. used (total)      763      data-arc span      8205 days (22.46 yr)      first obs. used      1998-09-27      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51845      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 13:36:18   Additional Information  Jupiter MOID = 2.16597 au   T_jup = 3.400  Orbit Covariance (6×6)   e q tp node peri i e 1.909153727107625E-15 -5.011118361735433E-15 1.101700656299485E-14 2.229128925175411E-14 1.927711355245131E-14 -2.858867533650965E-16 q -5.011118361735433E-15 1.322612875501028E-14 -6.532752141659256E-14 -5.986012155974236E-14 -6.010865983779477E-14 7.755221748728646E-16 tp 1.101700656299485E-14 -6.532752141659256E-14 1.281521509093087E-9 -3.294664137261422E-12 3.483994640337986E-10 5.679553863054858E-13 node 2.229128925175411E-14 -5.986012155974236E-14 -3.294664137261422E-12 2.321127688415352E-9 -2.314044071971126E-9 5.125685648908691E-11 peri 1.927711355245131E-14 -6.010865983779477E-14 3.483994640337986E-10 -2.314044071971126E-9 2.408301745953352E-9 -5.096916555206041E-11 i -2.858867533650965E-16 7.755221748728646E-16 5.679553863054858E-13 5.125685648908691E-11 -5.096916555206041E-11 1.756122560945751E-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 15.59   n/a E2020-QM9   78338 (2002 PR88)          Discovered 2002-Aug-13 by Spacewatch at Kitt Peak Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2002 PR88 = 2000 EG174 = 2000 EL185  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 06:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin