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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1132658557403388 3.6714e-08  
a 2.33013162713782 1.1926e-08 au
q 2.066207274402427 8.5039e-08 au
i 6.643779869450777 4.7262e-06 deg
node 40.10011757925849 3.3777e-05 deg
peri 270.5052343827913 4.0225e-05 deg
M 189.7573198048677 2.3056e-05 deg
tp 2459814.877151434135
(2022-Aug-23.37715143)
8.5227e-05 TDB
period 1299.179349519032
3.56
9.9741e-06
2.731e-08
d
yr
n .277098000467199 2.1274e-09 deg/d
Q 2.594055979873213 1.3277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      427  
   data-arc span      7095 days (19.43 yr)  
   first obs. used      2001-09-11  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57861  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:09:11  

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 | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO436945  

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

[ show close-approach data ]
Alternate Designations
 2001 RJ90 = 2005 XK83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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