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409266 (2004 RK9)
Classification: Amor [NEO]          SPK-ID: 2409266
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4259299237087897 8.49e-08  
a 1.836305155520294 5.1451e-09 au
q 1.054167840723478 1.5775e-07 au
i 6.226707064948084 1.1459e-05 deg
node 354.80092210 2.7172e-05 deg
peri 284.2917175186943 5.2969e-05 deg
M 139.7741170273846 2.2367e-05 deg
tp 2458647.609502640057
(2019-Jun-13.10950264)
5.5236e-05 TDB
period 908.8991706861549
2.49
3.82e-06
1.046e-08
d
yr
n .3960835388684812 1.6647e-09 deg/d
Q 2.61844247031711 7.3366e-09 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      5510 days (15.09 yr)  
   first obs. used      2004-09-07  
   last obs. used      2019-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58727  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-10 08:24:14  

Additional Information
 Earth MOID = .109881 au 
 Jupiter MOID = 2.57314 au 
 T_jup = 3.902 
[ 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 21.2   n/a MPO307341  

409266 (2004 RK9)          Discovered 2004-Sep-07 by LINEAR at Socorro
Reference: Last Updated: 2014-10-09

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