+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1899507315886917 4.9886e-08   a 2.570368370116314 1.1829e-08 au q 2.082125017760287 1.3249e-07 au i 4.438019562726148 4.3515e-06 deg node 55.06753395512161 5.0249e-05 deg peri 33.05814978698589 5.1157e-05 deg M 24.93717771791432 8.5499e-06 deg tp 2458896.235544646508 (2020-Feb-16.73554465) 3.5658e-05 TDB period 1505.190537271295 4.12 1.0391e-05 2.845e-08 d yr n .2391723779054782 1.651e-09 deg/d Q 3.058611722472341 1.4076e-08 au   Orbit Determination Parameters    # obs. used (total)      745      data-arc span      7872 days (21.55 yr)      first obs. used      1998-09-27      last obs. used      2020-04-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51463      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:27:14   Additional Information  Earth MOID = 1.10011 au   Jupiter MOID = 2.16531 au   T_jup = 3.400  [ hide covariance matrix ] Orbital Elements at Epoch 2457173.5 (2015-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1880521412011873 4.9943e-08   q 2.087452295823086 1.3245e-07 au tp 2457391.134496140851 (2016-Jan-03.63449614) 3.6695e-05 TDB node 55.09799091268206 5.0295e-05 deg peri 33.13451804119592 5.1228e-05 deg i 4.436383123680267 4.346e-06 deg   Orbit Determination Parameters    # obs. used (total)      745      data-arc span      7872 days (21.55 yr)      first obs. used      1998-09-27      last obs. used      2020-04-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51463      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:27:14   Additional Information  Jupiter MOID = 2.16531 au   T_jup = 3.400  Orbit Covariance (6×6)   e q tp node peri i e 2.494259233141632E-15 -6.600460982123499E-15 2.055246135977576E-13 2.641617279491963E-14 9.652660642387107E-14 -6.735428018828197E-16 q -6.600460982123499E-15 1.754329318401822E-14 -5.934103141935703E-13 -7.121712517400136E-14 -2.697442833789216E-13 1.816361600356634E-15 tp 2.055246135977576E-13 -5.934103141935703E-13 1.346513268838443E-9 4.143821191876261E-13 3.718402200551944E-10 6.222423802388049E-13 node 2.641617279491963E-14 -7.121712517400136E-14 4.143821191876261E-13 2.529558882553902E-9 -2.520610882277291E-9 6.771831560632446E-11 peri 9.652660642387107E-14 -2.697442833789216E-13 3.718402200551944E-10 -2.520610882277291E-9 2.624354259889001E-9 -6.738302118009871E-11 i -6.735428018828197E-16 1.816361600356634E-15 6.222423802388049E-13 6.771831560632446E-11 -6.738302118009871E-11 1.888771991436549E-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 15.5   n/a MPO453204   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-Jan-22 19:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin