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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1394752032559315 3.9623e-08  
a 2.442124128082164 1.2273e-08 au
q 2.10150836894169 9.988e-08 au
i 7.078189298205404 3.8231e-06 deg
node 123.4666241943585 4.0958e-05 deg
peri 191.0735239905673 4.4676e-05 deg
M 24.76065811737183 1.9538e-05 deg
tp 2458904.624043107741
(2020-Feb-25.12404311)		 7.5473e-05 TDB
period 1393.959090974149
3.82		 1.0508e-05
2.877e-08		 d
yr
n .2582572202663559 1.9468e-09 deg/d
Q 2.782739887222638 1.3985e-08 au
   Orbit Determination Parameters
   # obs. used (total)      863  
   data-arc span      7497 days (20.53 yr)  
   first obs. used      1999-01-17  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58859  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 11:50:10  

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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