+ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1885797469507864 2.4691e-07   a 3.123127076830774 1.1946e-07 au q 2.534168562986877 6.7932e-07 au i 16.71529470115779 8.8417e-06 deg node 333.6680907298518 2.0657e-05 deg peri 5.853114897478941 4.0331e-05 deg M 3.169697615468467 1.9447e-05 deg tp 2458982.750004691011 (2020-May-13.25000469) 0.00010909 TDB period 2015.964639671708 5.52 0.00011566 3.167e-07 d yr n .1785745607416133 1.0246e-08 deg/d Q 3.71208559067467 1.4198e-07 au   Orbit Determination Parameters    # obs. used (total)      141      data-arc span      4070 days (11.14 yr)      first obs. used      2009-09-25      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59235      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:40:50   Additional Information  Earth MOID = 1.52565 au   Jupiter MOID = 1.68793 au   T_jup = 3.123  [ hide covariance matrix ] Orbital Elements at Epoch 2458263.5 (2018-May-25.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1903376928913524 2.4561e-07   q 2.528696006659919 6.8061e-07 au tp 2458982.952591261128 (2020-May-13.45259126) 0.00010718 TDB node 333.845524525192 2.0641e-05 deg peri 5.918654934034143 3.9756e-05 deg i 16.71364355810154 8.8459e-06 deg   Orbit Determination Parameters    # obs. used (total)      141      data-arc span      4070 days (11.14 yr)      first obs. used      2009-09-25      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59235      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:40:50   Additional Information  Jupiter MOID = 1.68793 au   T_jup = 3.123  Orbit Covariance (6×6)   e q tp node peri i e 6.032666863205148E-14 -1.670172872919686E-13 -4.979266533581966E-12 1.400970099141144E-13 -5.759768670065335E-12 -2.638966876390885E-13 q -1.670172872919686E-13 4.632361278362893E-13 1.390839042775813E-11 -3.777957200566443E-13 1.589337650759823E-11 7.365183085158103E-13 tp -4.979266533581966E-12 1.390839042775813E-11 1.148702513410022E-8 9.535184115337402E-12 3.079588606383431E-9 -5.416685136575531E-12 node 1.400970099141144E-13 -3.777957200566443E-13 9.535184115337402E-12 4.260593036571942E-10 -4.171195227565688E-10 8.468371548145111E-11 peri -5.759768670065335E-12 1.589337650759823E-11 3.079588606383431E-9 -4.171195227565688E-10 1.580549215443453E-9 -6.428261098947005E-11 i -2.638966876390885E-13 7.365183085158103E-13 -5.416685136575531E-12 8.468371548145111E-11 -6.428261098947005E-11 7.825038222853951E-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 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 00:10 Jupiter 1.83410941641504 1.83410147765225 1.83411735518273 4.17530427733964 4.0631923700986 2435843.156275065 9.67777418602725 441.792173841504 247.172961931325 -32.1692733942521 710014.195865204 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 01:40:51 2020-Dec-18 01:40 1967-Jun-25 16:27 00:08 Jupiter 1.76328310707514 1.7632816107736 1.76328460371686 4.21209428935719 4.09646248244897 2439667.185311660 7.50945435510628 1490.52895651331 36.0161962104021 -87.1284592472075 1791645.73141134 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 01:40:51 2020-Dec-18 01:40 2039-Oct-01 06:15 00:04 Jupiter 1.74625351403352 1.7462526588903 1.74625436926003 4.23496354111668 4.11883643994094 2466062.760606823 4.44489079966523 919.025383565761 31.966500267004 -88.7354148810108 1671448.5441285 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 01:40:51 2020-Dec-18 01:40 2050-Mar-15 19:34 00:07 Jupiter 1.85255361901056 1.8525471288155 1.85256011094442 4.14032910124344 4.0283851950415 2469881.315339355 7.20703242994466 2919.87323408012 41.9957875365548 -83.7176170547348 1745527.15674362 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 01:40:51 2020-Dec-18 01:40 2122-Jun-30 04:06 00:18 Jupiter 1.70132357810157 1.70132254374834 1.70132461323591 4.28117259149956 4.16325797005939 2496284.670671903 17.9101146558046 2559.46628768941 36.5420699811114 88.8825585533221 1894946.20361482 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 01:40:51 2020-Dec-18 01:40 2132-Nov-29 06:21 00:24 Jupiter 1.97366605821915 1.97364873387118 1.97368338705695 4.05705537507247 3.94985750032833 2500089.764922420 23.5220803532996 4841.85537116323 36.64329119483 -79.4846585153949 1998238.31045489 T 15 CATAB v2.0f-lin.ifort 2020-Dec-18 01:40:51 2020-Dec-18 01:40 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-19 03:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin