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226371 (2003 JR7)
Classification: Main-belt Asteroid          SPK-ID: 2226371
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 .2390918843781827 5.0467e-08  
a 2.804594241794595 2.507e-08 au
q 2.134038519607725 1.3955e-07 au
i 8.01758584920618 5.4114e-06 deg
node 90.51730369750435 5.0431e-05 deg
peri 201.9780335469179 5.2186e-05 deg
M 182.5743763429905 1.6865e-05 deg
tp 2459846.007226072627
(2022-Sep-23.50722607)
8.6026e-05 TDB
period 1715.550409869563
4.70
2.3003e-05
6.298e-08
d
yr
n .2098451890011041 2.8137e-09 deg/d
Q 3.475149963981465 3.1064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      8368 days (22.91 yr)  
   first obs. used      1995-11-17  
   last obs. used      2018-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62275  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:00:31  

Additional Information
 Earth MOID = 1.12023 au 
 Jupiter MOID = 1.73325 au 
 T_jup = 3.267 
[ 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 15.9   n/a MPO470423  

226371 (2003 JR7)          Discovered 2003-May-02 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2003 JR7 = 1995 WF20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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