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226810 (2004 RL222)
Classification: Main-belt Asteroid          SPK-ID: 2226810
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02628571812746561 6.0637e-08  
a 3.096421305079237 3.7657e-08 au
q 3.015029647450045 1.8715e-07 au
i 10.10500136346441 7.6022e-06 deg
node 182.8543795606831 3.138e-05 deg
peri 67.21152169309867 0.00013834 deg
M 71.72842419871918 0.00013321 deg
tp 2458603.968871036590
(2019-Apr-30.46887104)
0.00073817 TDB
period 1990.162310430019
5.45
3.6305e-05
9.94e-08
d
yr
n .1808897686954055 3.2998e-09 deg/d
Q 3.177812962708429 3.8647e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      8112 days (22.21 yr)  
   first obs. used      1997-06-08  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67937  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:09:44  

Additional Information
 Earth MOID = 2.02057 au 
 Jupiter MOID = 1.81264 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 15.9   n/a MPO440184  

226810 (2004 RL222)          Discovered 2004-Sep-14 by Young, J. W. at Wrightwood
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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