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157491 Rudigerkollar (2005 RD22)
Classification: Main-belt Asteroid          SPK-ID: 2157491
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978061574536513 1.469e-07  
a 3.057134944395557 7.4595e-08 AU
q 2.45241482822739 4.805e-07 AU
i 3.315317542116118 1.5853e-05 deg
node 341.9814590373904 0.0001626 deg
peri 48.43443980729303 0.00016901 deg
M 221.3282660662709 4.4894e-05 deg
tp 2457552.565706906522
(2016-Jun-13.06570691)
0.00026294 JED
period 1952.40693114673
5.35
7.1459e-05
1.956e-07
d
yr
n .1843877904021561 6.7487e-09 deg/d
Q 3.661855060563725 8.9351e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      6781 days (18.57 yr)  
   first obs. used      1994-09-11  
   last obs. used      2013-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56463  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-07 14:25:59  

Additional Information
 Earth MOID = 1.458 AU 
 T_jup = 3.202 
[ 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 15.7 mag n/a MPO260161  

157491 Rüdigerkollar           Discovered 2005 Sept. 8 by M. Fiedler at Radebeul.
Rüdiger Kollar (1925-2005) founded the Radebeul Public Observatory, where this minor planet was discovered. Later he became director of this Observatory and remained in that position until his retirement in 1989.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

[ show close-approach data ]
Alternate Designations
 2005 RD22 = 2002 EL156 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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