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226690 (2004 JH20)
Classification: Main-belt Asteroid          SPK-ID: 2226690
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1929796233082496 7.6785e-08  
a 2.561172797177873 2.0543e-08 au
q 2.066918635551151 2.0945e-07 au
i 4.109432439337781 9.129e-06 deg
node 199.4903594110932 5.5459e-05 deg
peri 42.24536438259972 6.6191e-05 deg
M 327.1041117090806 3.7353e-05 deg
tp 2459137.303076752352
(2020-Oct-14.80307675)
0.00015669 TDB
period 1497.120466707127
4.10
1.8013e-05
4.932e-08
d
yr
n .2404616114772712 2.8931e-09 deg/d
Q 3.055426958804595 2.4508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      5826 days (15.95 yr)  
   first obs. used      2004-05-14  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53888  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:28:44  

Additional Information
 Earth MOID = 1.05665 au 
 Jupiter MOID = 1.96173 au 
 T_jup = 3.405 
[ 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 16.6   n/a MPO422879  

226690 (2004 JH20)          Discovered 2004-May-14 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 JH20 = 2005 SY58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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