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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978061338658992 1.263e-07  
a 3.057134949411096 6.9283e-08 AU
q 2.452414904361766 4.1777e-07 AU
i 3.315305081980602 1.2848e-05 deg
node 341.9816162216963 0.00014451 deg
peri 48.43427455439427 0.00014833 deg
M 221.3282704041513 3.564e-05 deg
tp 2457552.565685231426
(2016-Jun-13.06568523)
0.00021316 JED
period 1952.40693595141
5.35
6.637e-05
1.817e-07
d
yr
n .184387789948396 6.2681e-09 deg/d
Q 3.661854994460426 8.2988e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      7221 days (19.77 yr)  
   first obs. used      1994-09-11  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54288  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 15:41:16  

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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