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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1289225409333145 6.7206e-08  
a 3.184915686085575 4.5022e-08 AU
q 2.774308263177052 2.2261e-07 AU
i 17.16939146014166 1.2532e-05 deg
node 19.89551292250369 2.1827e-05 deg
peri 104.0268604606333 5.3162e-05 deg
M 292.5262325328199 4.7332e-05 deg
tp 2457389.614841551971
(2016-Jan-02.11484155)
0.00027502 JED
period 2076.085984480509
5.68
4.4022e-05
1.205e-07
d
yr
n .1734032225500917 3.6769e-09 deg/d
Q 3.595523108994098 5.0827e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      859  
   data-arc span      15963 days (43.70 yr)  
   first obs. used      1971-05-14  
   last obs. used      2015-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45283  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 16:21:58  

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 12.1 mag n/a MPO319641  

46564 (1991 RA11)          Discovered 1991-Sep-10 by Holt, H. E. at Palomar
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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