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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 ]

[ hide orbit diagram ]

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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2016608946302539 2.4535e-07  
a .8095485413337294 2.4343e-08 au
q .6462942582417526 2.0955e-07 au
i 17.17684840071408 3.3562e-05 deg
node 239.648529602703 3.4402e-05 deg
peri 327.6337228559404 4.8708e-05 deg
M 277.7866347503683 0.00012592 deg
tp 2459261.257891444267
(2021-Feb-15.75789144)
9.5439e-05 TDB
period 266.0496970720232
0.73
1.2e-05
3.285e-08
d
yr
n 1.353130651761439 6.1032e-08 deg/d
Q .9728028244257063 2.9252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      1084 days (2.97 yr)  
   first obs. used      2017-12-05  
   last obs. used      2020-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .67252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-24 05:23:26  

Additional Information
 Earth MOID = .0486141 au 
 Jupiter MOID = 4.00759 au 
 T_jup = 7.166 
[ 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 21.3   n/a E2020-WD5  

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