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(2011 XA3)
Classification: Apollo [NEO, PHA]          SPK-ID: 3591407
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

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Orbit Diagram
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 2-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 has stopped working because of a recent Java upgrade, here is a possible workaround.
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 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .925962542211876 2.8259e-05  
a 1.466914620918411 0.00031379 AU
q .1086066293250287 1.8226e-05 AU
i 27.99265176869881 0.0043936 deg
node 273.5079466318351 0.00057175 deg
peri 323.8630449451471 0.0014577 deg
M 331.6371471786565 0.22009 deg
tp 2457251.627327646159
0.41313 JED
period 648.9417009126353
n .5547493703883047 0.000178 deg/d
Q 2.825222612511793 0.00060434 AU
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      27 days  
   first obs. used      2011-11-26  
   last obs. used      2011-12-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      6  
   fit RMS      .34568  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 15:27:17  

Additional Information
 Earth MOID = .0342876 AU 
 T_jup = 3.901 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.5 mag n/a MPO258414  
rotation period rot_per 0.730 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Urakawa, S.; Ohtsuka, K.; Abe, S.; Ito, T.; Nakamura, T. (2014) Astron. J. 147, A121.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
FirstGov 2015-Nov-25 10:16 UT
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