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(2009 XG20)
Classification: Main-belt Asteroid          SPK-ID: 3484301
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2470123440370245 1.141e-07  
a 2.604707246503676 4.0622e-08 au
q 1.961312404014579 3.198e-07 au
i 14.67300167988721 8.7227e-06 deg
node 73.80061355293022 2.3898e-05 deg
peri 313.0512234353358 2.6901e-05 deg
M 317.2430863159322 1.0784e-05 deg
tp 2459578.864647945208
(2021-Dec-30.36464795)
4.8e-05 TDB
period 1535.453979334764
4.20
3.592e-05
9.834e-08
d
yr
n .2344583457694839 5.4848e-09 deg/d
Q 3.248102088992772 5.0657e-08 au
  Orbit Determination Parameters
   # obs. used (total)      256  
   data-arc span      6176 days (16.91 yr)  
   first obs. used      2004-08-09  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58859  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 17:30:58  

Additional Information
 Earth MOID = .996976 au 
 Jupiter MOID = 2.26465 au 
 T_jup = 3.324 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.51   n/a E2021N49  
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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