+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   487220 (2014 OJ388) Classification: Main-belt Asteroid          SPK-ID: 2487220 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1885796851373568 2.5309e-07   a 3.123127076748476 2.3898e-07 au q 2.534168755971295 7.4711e-07 au i 16.7152807089354 2.6791e-05 deg node 333.6681012099296 3.2697e-05 deg peri 5.853094934188198 5.0656e-05 deg M 3.169702084794233 5.4623e-05 deg tp 2458982.749979663927 (2020-May-13.24997966) 0.00030431 TDB period 2015.964639592024 5.52 0.00023139 6.335e-07 d yr n .1785745607486717 2.0496e-08 deg/d Q 3.712085397525658 2.8404e-07 au   Orbit Determination Parameters    # obs. used (total)      51      data-arc span      2689 days (7.36 yr)      first obs. used      2009-09-25      last obs. used      2017-02-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62823      source      ORB      producer      Otto Matic      solution date      2017-Apr-09 00:19:40   Additional Information  Earth MOID = 1.52565 au   Jupiter MOID = 1.68793 au   T_jup = 3.123  [ hide covariance matrix ] Orbital Elements at Epoch 2457024.5 (2015-Jan-02.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1917719444538128 2.5058e-07   q 2.522886835500758 7.4122e-07 au tp 2456970.191407450459 (2014-Nov-08.69140745) 0.00018912 TDB node 333.8649942487212 3.2799e-05 deg peri 6.158509945176887 5.0212e-05 deg i 16.72808837283053 2.6783e-05 deg   Orbit Determination Parameters    # obs. used (total)      51      data-arc span      2689 days (7.36 yr)      first obs. used      2009-09-25      last obs. used      2017-02-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62823      source      ORB      producer      Otto Matic      solution date      2017-Apr-09 00:19:40   Additional Information  Jupiter MOID = 1.68793 au   T_jup = 3.123  Orbit Covariance (6×6)   e q tp node peri i e 6.279094752768966E-14 -1.801928655562774E-13 -3.480161800427973E-11 2.286727697667671E-13 -6.626163248680211E-12 -2.586102642502743E-13 q -1.801928655562774E-13 5.494039952708253E-13 1.105182330744367E-10 -7.397374543409066E-13 2.140261301410341E-11 8.753788413945564E-13 tp -3.480161800427973E-11 1.105182330744367E-10 3.576480395981999E-8 -1.525899840398073E-10 7.282087488243438E-9 1.762997385795293E-10 node 2.286727697667671E-13 -7.397374543409066E-13 -1.525899840398073E-10 1.075772673915052E-9 -1.057034334799104E-9 -5.485488652966702E-10 peri -6.626163248680211E-12 2.140261301410341E-11 7.282087488243438E-9 -1.057034334799104E-9 2.521229456757601E-9 5.582110422193497E-10 i -2.586102642502743E-13 8.753788413945564E-13 1.762997385795293E-10 -5.485488652966702E-10 5.582110422193497E-10 7.173117311791512E-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 16.6   n/a MPO398977   487220 (2014 OJ388)          Discovered 2012-Mar-15 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2017-03-14 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1957-Jan-04 15:45 01:22 Jupiter 1.83410954950927 1.83409643936733 1.83412270259719 4.17530169982209 4.06318972970971 2435843.156401373 82.2235132821259 14345.0715017752 72.9820137154375 -87.6314802661744 574881.383749698 T 12 CATAB v2.0e-lin.ifort 2017-Nov-27 12:19:13 2018-Dec-18 03:50 1967-Jun-25 16:27 01:04 Jupiter 1.7632831356184 1.76327681508814 1.76328945857746 4.21209148666671 4.09645960254446 2439667.185318186 63.680387257552 4223.08136940136 184.713437402707 87.1129573472279 552671.34143776 T 12 CATAB v2.0e-lin.ifort 2017-Nov-27 12:19:13 2018-Dec-18 03:50 2039-Oct-01 06:15 00:35 Jupiter 1.74625370078333 1.74625088426587 1.74625651983171 4.23496084087043 4.11883367615757 2466062.760742787 34.8692631410907 4536.73188757282 84.8406526090906 -88.8484930095752 600360.029706795 T 12 CATAB v2.0e-lin.ifort 2017-Nov-27 12:19:13 2018-Dec-18 03:50 2050-Mar-15 19:34 00:58 Jupiter 1.8525535147699 1.85254416627111 1.85256287061533 4.14032634264957 4.02838235340317 2469881.315348928 57.9454321053317 6102.21179879974 87.5562789972545 -86.1005770911713 454598.205018214 T 12 CATAB v2.0e-lin.ifort 2017-Nov-27 12:19:13 2018-Dec-18 03:50 2122-Jun-30 04:06 02:24 Jupiter 1.70132377143687 1.70131826386776 1.70132933021023 4.28116988378947 4.16325519924901 2496284.670803172 144.227544806197 16227.0454604122 102.553785917522 -89.2728248291399 597998.25251267 T 12 CATAB v2.0e-lin.ifort 2017-Nov-27 12:19:13 2018-Dec-18 03:50 2132-Nov-29 06:22 03:29 Jupiter 1.97366581517863 1.9736351301886 1.97369665047688 4.05705284385433 3.94985488703402 2500089.764944150 209.019344562345 27633.011490769 79.2954238966037 -87.0999821922593 550397.36879725 T 12 CATAB v2.0e-lin.ifort 2017-Nov-27 12:19:13 2018-Dec-18 03:50 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-03 09:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin