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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2050090857997125 6.0763e-08  
a 2.548817168930136 2.0007e-08 AU
q 2.026286491257157 1.5393e-07 AU
i 11.81003316725895 8.6055e-06 deg
node 323.1811687619851 2.7512e-05 deg
peri 49.68379485449454 3.7427e-05 deg
M 243.8123657669 2.8831e-05 deg
tp 2457480.193529960321
(2016-Apr-01.69352996)
0.00012287 JED
period 1486.299914147997
4.07
1.75e-05
4.791e-08
d
yr
n .2422122187945934 2.8519e-09 deg/d
Q 3.071347846603114 2.4109e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      926  
   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      .51968  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:47:05  

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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