Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
157491 Rudigerkollar (2005 RD22)
Classification: Main-belt Asteroid          SPK-ID: 2157491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1938466580062712 6.9989e-08  
a 3.065246595255235 3.6919e-08 au
q 2.471058786799906 2.3097e-07 au
i 3.311974011317277 6.7063e-06 deg
node 341.7379462431389 8.4281e-05 deg
peri 48.14171457500824 8.7022e-05 deg
M 267.2417966888657 2.7787e-05 deg
tp 2459505.563962984842
(2021-Oct-18.06396298)
0.00015906 TDB
period 1960.182713594212
5.37
3.5413e-05
9.696e-08
d
yr
n .1836563487185846 3.318e-09 deg/d
Q 3.659434403710564 4.4075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      9409 days (25.76 yr)  
   first obs. used      1994-09-11  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53186  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 12:52:48  

Additional Information
 Earth MOID = 1.47782 au 
 Jupiter MOID = 1.81066 au 
 T_jup = 3.201 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO436797  
diameter diameter 2.625 km 1.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.135   0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-20 04:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin