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514150 (2015 KJ57)
Classification: Apollo [NEO, PHA]          SPK-ID: 2514150
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 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4039652031044375 2.5261e-08  
a 1.558948005183941 1.4687e-08 au
q .9291872576405527 4.0387e-08 au
i 2.627530782084365 4.4258e-06 deg
node 14.40103085139167 0.00017503 deg
peri 336.4291545061694 0.00017243 deg
M 149.5296708344229 9.6065e-06 deg
tp 2458705.195034697136
(2019-Aug-09.69503470)
1.7057e-05 TDB
period 710.9611551726754
1.95
1.0047e-05
2.751e-08
d
yr
n .5063567782582505 7.1557e-09 deg/d
Q 2.188708752727329 2.062e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      994 days (2.72 yr)  
   first obs. used      2015-05-18  
   last obs. used      2018-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45065  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-06 02:21:31  

Additional Information
 Earth MOID = .0121709 au 
 Jupiter MOID = 3.2474 au 
 T_jup = 4.338 
[ 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 21.4   n/a MPO435431  

514150 (2015 KJ57)          Discovered 2015-May-18 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2018-03-05

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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