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441864 (2009 XG)
Classification: Main-belt Asteroid          SPK-ID: 2441864
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1149879758097586 5.705e-08  
a 2.25695844298576 2.3856e-08 au
q 1.997435360140083 1.4335e-07 au
i 5.79083064923297 5.1921e-06 deg
node 86.22817150475811 5.4854e-05 deg
peri 30.10875838594105 6.3106e-05 deg
M 55.26875071757702 2.8415e-05 deg
tp 2459010.365503953764
(2020-Jun-09.86550395)
9.7704e-05 TDB
period 1238.465094433124
3.39
1.9636e-05
5.376e-08
d
yr
n .2906823951827086 4.6088e-09 deg/d
Q 2.516481525831437 2.6599e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      4727 days (12.94 yr)  
   first obs. used      2007-02-16  
   last obs. used      2020-01-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56582  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:14  

Additional Information
 Earth MOID = 1.01611 au 
 Jupiter MOID = 2.56304 au 
 T_jup = 3.607 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO503571  

441864 (2009 XG)          Discovered 2009-Nov-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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