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226987 (2004 XE44)
Classification: Main-belt Asteroid          SPK-ID: 2226987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06047343973523994 4.6902e-08  
a 2.918066413165953 2.8895e-08 au
q 2.741600899785934 1.419e-07 au
i 2.806854122195821 5.4798e-06 deg
node 57.13166533117608 0.00010941 deg
peri 339.7823445685071 0.0001192 deg
M 68.65610300596327 4.6076e-05 deg
tp 2458653.269526352555
0.00023354 TDB
period 1820.711707191168
n .1977248779024857 2.9368e-09 deg/d
Q 3.094531926545972 3.0642e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      7382 days (20.21 yr)  
   first obs. used      1999-11-12  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53451  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 06:01:27  

Additional Information
 Earth MOID = 1.74875 au 
 Jupiter MOID = 2.1779 au 
 T_jup = 3.276 
[ 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 15.9   n/a MPO454631  

226987 (2004 XE44)          Discovered 2004-Dec-11 by CINEOS at Campo Imperatore
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2004 XE44 = 2006 BZ263 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Nov-24 16:19 UT
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