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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1288546315929681 8.6472e-08  
a 3.185443436980572 6.1765e-08 AU
q 2.774984296448202 2.6117e-07 AU
i 17.16792952035686 1.3635e-05 deg
node 19.89525567989149 2.6441e-05 deg
peri 103.9518199033493 5.8333e-05 deg
M 257.9186439695727 5.5113e-05 deg
tp 2457389.339863523259
(2016-Jan-01.83986352)
0.00032664 JED
period 2076.60202716339
5.69
6.0398e-05
1.654e-07
d
yr
n .1733601312581569 5.0421e-09 deg/d
Q 3.595902577512942 6.9724e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      15545 days (42.56 yr)  
   first obs. used      1971-05-14  
   last obs. used      2013-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50104  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 06:49:46  

Additional Information
 Earth MOID = 1.84978 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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