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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2048452083360844 5.6594e-08  
a 2.549097814966107 1.7933e-08 au
q 2.026927341990317 1.4595e-07 au
i 11.80952808666409 8.2285e-06 deg
node 323.1773197766247 2.6919e-05 deg
peri 49.59699837088438 3.6698e-05 deg
M 29.18285762036244 2.8855e-05 deg
tp 2457479.995436636288
(2016-Apr-01.49543664)
0.00011829 JED
period 1486.545401937151
4.07
1.5687e-05
4.295e-08
d
yr
n .2421722199206805 2.5555e-09 deg/d
Q 3.071268287941897 2.1606e-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 = 1.04554 au 
 Jupiter MOID = 2.4618 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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