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JPL Small-Body Database Browser
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56516 (2000 HE20)
Classification: Main-belt Asteroid          SPK-ID: 2056516
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1394752379203247 4.1598e-08  
a 2.442124118130798 1.3239e-08 au
q 2.101508275723542 1.0372e-07 au
i 7.078181496323058 4.171e-06 deg
node 123.4666241542796 4.2106e-05 deg
peri 191.073490310759 4.5864e-05 deg
M 24.76069268489199 2.027e-05 deg
tp 2458904.623909844575
(2020-Feb-25.12390984)		 7.825e-05 TDB
period 1393.959082453822
3.82		 1.1335e-05
3.103e-08		 d
yr
n .2582572218449071 2.1e-09 deg/d
Q 2.782739960538054 1.5085e-08 au
   Orbit Determination Parameters
   # obs. used (total)      774  
   data-arc span      7419 days (20.31 yr)  
   first obs. used      1999-01-17  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59924  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:09:41  

Additional Information
 Earth MOID = 1.08797 au 
 Jupiter MOID = 2.47997 au 
 T_jup = 3.477 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO436178  

56516 (2000 HE20)          Discovered 2000-Apr-27 by Spacewatch at Kitt Peak
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

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