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(2010 HP20)
Classification: Apollo [NEO]          SPK-ID: 3518217
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 2455306.5 (2010-Apr-20.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5353897667089742 0.17865  
a 1.99622327722274 0.73104 AU
q .9274657625314331 0.017034 AU
i 7.715733480197314 1.8121 deg
node 209.0895618159263 0.081017 deg
peri 320.8927542602544 0.41678 deg
M 10.82227660351812 6.716 deg
tp 2455275.530925344240
(2010-Mar-20.03092534)
2.2281 JED
period 1030.17759428264
2.82
565.9
1.549
d
yr
n .3494543096238513 0.19196 deg/d
Q 3.064980791914046 1.1224 AU
  Orbit Determination Parameters
   # obs. used (total)      12  
   first obs. used      2010-04-20  
   last obs. used      2010-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      9  
   fit RMS      .42835  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 12:26:04  

Additional Information
 Earth MOID = .000882278 AU 
 T_jup = 3.643 
[ 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 27.5 mag n/a MPO175161  

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