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226817 (2004 RP239)
Classification: Main-belt Asteroid          SPK-ID: 2226817
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0520441956342203 5.7968e-08  
a 2.803580809009221 2.8446e-08 au
q 2.657670700908799 1.6127e-07 au
i 4.100713870845959 6.7678e-06 deg
node 189.2431431861108 7.777e-05 deg
peri 122.6532952956869 9.899e-05 deg
M 163.5640117029486 6.2911e-05 deg
tp 2458221.471586961672
(2018-Apr-12.97158696)
0.00029934 TDB
period 1714.620629403053
4.69
2.6096e-05
7.145e-08
d
yr
n .2099589809119085 3.1955e-09 deg/d
Q 2.949490917109643 2.9927e-08 au
  Orbit Determination Parameters
   # obs. used (total)      203  
   data-arc span      6945 days (19.01 yr)  
   first obs. used      2000-12-30  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 01:38:24  

Additional Information
 Earth MOID = 1.64645 au 
 Jupiter MOID = 2.18634 au 
 T_jup = 3.318 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO440184  

226817 (2004 RP239)          Discovered 2004-Sep-10 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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