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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457640.5 (2016-Sep-09.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4043990264003416 2.5295e-08  
q .9292357887200674 4.036e-08 au
tp 2457994.110869493660
(2017-Aug-28.61086949)
1.6336e-05 TDB
node 14.49015451722489 0.00017494 deg
peri 336.3066035055243 0.00017232 deg
i 2.627946326765954 4.4291e-06 deg
  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
 Jupiter MOID = 3.2474 au 
 T_jup = 4.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.398493977421094E-16 -9.951528715628887E-16 -1.753467550497338E-13 -6.105058306142999E-13 4.799749851976827E-13 -1.586877158312008E-14
q -9.951528715628887E-16 1.628918318605707E-15 2.42008067302263E-13 6.893081305425599E-13 -5.397869732434607E-13 1.962524601343111E-14
tp -1.753467550497338E-13 2.42008067302263E-13 2.668673843967264E-10 5.70049046251051E-10 -3.687861457970125E-10 1.186913671854358E-11
node -6.105058306142999E-13 6.893081305425599E-13 5.70049046251051E-10 3.060518170954914E-8 -3.006315741332821E-8 5.531327602005182E-10
peri 4.799749851976827E-13 -5.397869732434607E-13 -3.687861457970125E-10 -3.006315741332821E-8 2.969447577165108E-8 -5.413648954352126E-10
i -1.586877158312008E-14 1.962524601343111E-14 1.186913671854358E-11 5.531327602005182E-10 -5.413648954352126E-10 1.961721811685314E-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 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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