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(2017 XA1)
Classification: Atira [NEO, PHA]          SPK-ID: 3791243
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2015393845191882 1.6467e-06  
a .8096048275685764 1.7385e-07 au
q .6464375689166421 1.4682e-06 au
i 17.17614307056229 0.00027488 deg
node 239.6571070032491 0.00030334 deg
peri 327.6155043503246 0.00032634 deg
M 7.201028064931788 0.00096152 deg
tp 2458995.177691265451
(2020-May-25.67769127)
0.00070897 TDB
period 266.0774443816472
0.73
8.5704e-05
2.346e-07
d
yr
n 1.352989543464027 4.358e-07 deg/d
Q .9727720862205108 2.0889e-07 au
  Orbit Determination Parameters
   # obs. used (total)      22  
   data-arc span      1041 days (2.85 yr)  
   first obs. used      2017-12-05  
   last obs. used      2020-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .54027  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-12 07:24:34  

Additional Information
 Earth MOID = .0479827 au 
 Jupiter MOID = 4.00877 au 
 T_jup = 7.165 
[ 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 21.2   n/a MPO431253  

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