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487220 (2014 OJ388)
Classification: Main-belt Asteroid          SPK-ID: 2487220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1885797374576337 2.4723e-07  
a 3.123127080663505 1.1952e-07 au
q 2.534168595745156 6.805e-07 au
i 16.715294187626 9.3834e-06 deg
node 333.6680906337256 2.0661e-05 deg
peri 5.853115961399878 4.0347e-05 deg
M 3.169695941240556 1.9515e-05 deg
tp 2458982.750014033848
(2020-May-13.25001403)
0.00010947 TDB
period 2015.964643382725
5.52
0.00011573
3.169e-07
d
yr
n .1785745604128907 1.0251e-08 deg/d
Q 3.712085565581855 1.4206e-07 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      4046 days (11.08 yr)  
   first obs. used      2009-09-25  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57832  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:28:20  

Additional Information
 Earth MOID = 1.52565 au 
 Jupiter MOID = 1.68793 au 
 T_jup = 3.123 
[ show covariance matrix ]

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

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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 1.83410937307142 1.83410143238226 1.83411731376559 4.17530432363106 4.06319241498131 2435843.156201140 9.68459782328441 443.678891749975 252.313251369156 -33.0218396292596 702293.263955042 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 02:28:21 2020-Nov-12 02:28
1967-Jun-25 16:27 00:08 Jupiter 1.76328316587916 1.76328165856348 1.76328467353331 4.21209423556246 4.09646243104642 2439667.185262879 7.51262004232411 1498.11631166158 36.8189237296609 -87.1402746728536 1740333.67980631 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 02:28:21 2020-Nov-12 02:28
2039-Oct-01 06:15 00:04 Jupiter 1.74625355467988 1.74625269120688 1.74625441823527 4.23496345525893 4.11883635440362 2466062.760640875 4.44603329676869 921.658279927699 32.435363525163 -88.7234185167517 1590401.63772659 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 02:28:21 2020-Nov-12 02:28
2050-Mar-15 19:34 00:07 Jupiter 1.85255359478956 1.85254710416431 1.85256008715573 4.14032914143651 4.02838523486755 2469881.315385116 7.21199356023634 2925.40303448552 44.2507561482931 -83.7343445240413 1631154.87219305 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 02:28:21 2020-Nov-12 02:28
2122-Jun-30 04:06 00:18 Jupiter 1.70132363878297 1.70132259125668 1.70132468707356 4.28117249010706 4.16325787006042 2496284.670792507 17.9181160312882 2562.08725380097 37.5774120328076 88.8854540676713 1796839.72938249 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 02:28:21 2020-Nov-12 02:28
2132-Nov-29 06:22 00:24 Jupiter 1.97366591455789 1.97364858575265 1.97368324785803 4.05705557359747 3.94985769633252 2500089.765074440 23.5352836928618 4845.08348321896 38.4564517540616 -79.4892571295079 1875787.99011437 T 14 CATAB v2.0f-lin.ifort 2020-Nov-12 02:28:21 2020-Nov-12 02:28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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