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190805 (2001 RJ90)
Classification: Main-belt Asteroid          SPK-ID: 2190805
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1132658525275296 3.6257e-08  
a 2.330131626216874 1.1808e-08 au
q 2.066207281072061 8.4191e-08 au
i 6.643780116678823 4.5361e-06 deg
node 40.10011900963173 3.3567e-05 deg
peri 270.5052360223406 3.9673e-05 deg
M 189.7573175028877 2.269e-05 deg
tp 2459814.877159377359
(2022-Aug-23.37715938)
8.4051e-05 TDB
period 1299.179348748813
3.56
9.8753e-06
2.704e-08
d
yr
n .2770980006314766 2.1063e-09 deg/d
Q 2.594055971361687 1.3145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      7160 days (19.60 yr)  
   first obs. used      2001-09-11  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57774  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:18:17  

Additional Information
 Earth MOID = 1.06309 au 
 Jupiter MOID = 2.63106 au 
 T_jup = 3.554 
[ 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 16.79   n/a MPCxxxxx  

190805 (2001 RJ90)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

Alternate Designations
 2001 RJ90 = 2005 XK83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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