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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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2015478600063356 1.0794e-05  
a .8096000274215984 5.818e-06 au
q .6464268744337046 1.3089e-05 au
i 17.17699360102432 0.0012494 deg
node 239.6563629513495 0.0012254 deg
peri 327.6159932349236 0.0013739 deg
M 7.211995427344806 0.013206 deg
tp 2458995.169632649862
(2020-May-25.66963265)
0.0097034 TDB
period 266.0750780254252
0.73
0.0028681
7.852e-06
d
yr
n 1.353001576365598 1.4585e-05 deg/d
Q .9727731804094922 6.9906e-06 au
  Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      41 days  
   first obs. used      2017-12-05  
   last obs. used      2018-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .44889  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jan-15 06:58:03  

Additional Information
 Earth MOID = .0479826 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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