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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2050090853363447 6.0732e-08  
a 2.548817168927119 2.0006e-08 AU
q 2.026286492435799 1.5386e-07 AU
i 11.81003289599032 8.5941e-06 deg
node 323.1811692518024 2.75e-05 deg
peri 49.68379468023976 3.7396e-05 deg
M 243.8123655235415 2.8814e-05 deg
tp 2457480.193530964202
(2016-Apr-01.69353096)
0.00012281 JED
period 1486.299914145358
4.07
1.75e-05
4.791e-08
d
yr
n .2422122187950234 2.8518e-09 deg/d
Q 3.071347845418439 2.4108e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      944  
   data-arc span      14053 days (38.48 yr)  
   first obs. used      1975-11-27  
   last obs. used      2014-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51503  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:20:14  

Additional Information
 Earth MOID = 1.04616 AU 
 T_jup = 3.383 
[ 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 (402)
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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