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259146 (2002 XF84)
Classification: Mars-crossing Asteroid          SPK-ID: 2259146
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3909238138473326 7.1582e-08  
a 2.620904908995235 8.9504e-09 au
q 1.596330766239621 1.8703e-07 au
i 28.37539903008166 9.4561e-06 deg
node 46.87705793745196 1.4438e-05 deg
peri 102.6657901625675 2.159e-05 deg
M 75.91685385572792 8.9632e-06 deg
tp 2458873.678194956937
(2020-Jan-25.17819496)
3.8569e-05 TDB
period 1549.798810671152
4.24
7.9389e-06
2.174e-08
d
yr
n .2322882154259102 1.1899e-09 deg/d
Q 3.645479051750848 1.2449e-08 au
  Orbit Determination Parameters
   # obs. used (total)      588  
   data-arc span      9661 days (26.45 yr)  
   first obs. used      1993-12-13  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44385  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 23:12:06  

Additional Information
 Earth MOID = .801721 au 
 Jupiter MOID = 2.07635 au 
 T_jup = 3.135 
[ 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 16.44   n/a E2021B55  

259146 (2002 XF84)          Discovered 2002-Dec-13 by LINEAR at Socorro
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

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