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JPL Small-Body Database Browser
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(2015 XN261)
Classification: Aten [NEO]          SPK-ID: 3736504
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1637632866152131 3.9439e-05  
a .9739005762575339 4.1234e-06 au
q .8144114170531502 4.1852e-05 au
i 2.321485109275315 0.00040281 deg
node 278.5078381326391 0.00059897 deg
peri 274.8966624875221 0.0021955 deg
M 87.54001515452292 0.0089245 deg
tp 2458515.136054910756
(2019-Jan-31.63605491)
0.0081607 TDB
period 351.0511184843012
0.96
0.0022295
6.104e-06
d
yr
n 1.025491676409796 6.5127e-06 deg/d
Q 1.133389735461918 4.7986e-06 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      12 days  
   first obs. used      2015-12-10  
   last obs. used      2015-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .33512  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:29:56  

Additional Information
 Earth MOID = .00536045 au 
 Jupiter MOID = 3.82547 au 
 T_jup = 6.196 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.2   n/a E2015Y84  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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