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11290 (1991 RA1)
Classification: Main-belt Asteroid          SPK-ID: 2011290
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049153680163675 5.6586e-08  
a 2.549333204674281 1.7822e-08 au
q 2.026935652842105 1.4591e-07 au
i 11.80987899431957 8.2287e-06 deg
node 323.1798947794937 2.6917e-05 deg
peri 49.6166974548028 3.6692e-05 deg
M 340.7365221019861 2.8506e-05 deg
tp 2457480.055558513023
(2016-Apr-01.55555851)
0.00011828 JED
period 1486.751313356608
4.07
1.559e-05
4.268e-08
d
yr
n .242138679660713 2.5391e-09 deg/d
Q 3.071730756506457 2.1474e-08 au
  Orbit Determination Parameters
   # obs. used (total)      968  
   data-arc span      14477 days (39.64 yr)  
   first obs. used      1975-11-27  
   last obs. used      2015-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51597  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:32:40  

Additional Information
 Earth MOID = 1.0449 au 
 Jupiter MOID = 2.46146 au 
 T_jup = 3.382 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO263451  

11290 (1991 RA1)          Discovered 1991-Sep-10 by Sugie, A. at Dynic
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RA1 = 1975 WB = 1987 QL3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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