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46564 (1991 RA11)
Classification: Main-belt Asteroid          SPK-ID: 2046564
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1289225308533127 8.6445e-08  
a 3.184915678540896 6.1478e-08 AU
q 2.774308288709007 2.6123e-07 AU
i 17.16938812600161 1.3636e-05 deg
node 19.89552082369049 2.6427e-05 deg
peri 104.0268500584542 5.8276e-05 deg
M 292.5262371065947 5.554e-05 deg
tp 2457389.614813792795
(2016-Jan-02.11481379)
0.0003261 JED
period 2076.085977103515
5.68
6.0112e-05
1.646e-07
d
yr
n .1734032231662485 5.0208e-09 deg/d
Q 3.595523068372783 6.9404e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      674  
   data-arc span      15787 days (43.22 yr)  
   first obs. used      1971-05-14  
   last obs. used      2014-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49716  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 15:11:02  

Additional Information
 Earth MOID = 1.84928 AU 
 T_jup = 3.116 
[ 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 12.0 mag n/a MPO266174  

46564 (1991 RA11)          Discovered 1991-Sep-10 by Holt, H. E. at Palomar (675)
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RA11 = 1980 XN1 = 1999 CZ123 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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