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186947 (2004 RE31)
Classification: Main-belt Asteroid          SPK-ID: 2186947
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2066763881731331 5.8851e-08  
a 3.051479139556409 2.324e-08 au
q 2.42081045240723 1.8997e-07 au
i 4.371682116094824 4.2876e-06 deg
node 62.24041672943969 6.5816e-05 deg
peri 295.8158804742932 6.6757e-05 deg
M 4.909327259669554 8.8027e-06 deg
tp 2459173.948838909267
(2020-Nov-20.44883891)
4.7596e-05 TDB
period 1946.991407801825
5.33
2.2242e-05
6.09e-08
d
yr
n .1849006618916947 2.1123e-09 deg/d
Q 3.682147826705588 2.8043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      9512 days (26.04 yr)  
   first obs. used      1994-12-28  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5185  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:23  

Additional Information
 Earth MOID = 1.41957 au 
 Jupiter MOID = 1.7826 au 
 T_jup = 3.199 
[ 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 15.98   n/a E2021B55  

186947 (2004 RE31)          Discovered 2004-Sep-07 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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