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172947 Baeyens (2005 JQ138)
Classification: Main-belt Asteroid          SPK-ID: 2172947
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07430111408856242 1.5789e-07  
a 3.003733833753078 5.1827e-08 au
q 2.780553063479716 4.9377e-07 au
i 11.44193837630879 1.4529e-05 deg
node 54.32126747261208 4.0777e-05 deg
peri 192.0947717245855 8.4864e-05 deg
M 45.2360974574366 7.9632e-05 deg
tp 2457361.568600567176
(2015-Dec-05.06860057)
0.00041863 JED
period 1901.474897934108
5.21
4.9213e-05
1.347e-07
d
yr
n .1893267170611237 4.9e-09 deg/d
Q 3.22691460402644 5.5678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      226  
   data-arc span      4631 days (12.68 yr)  
   first obs. used      2002-12-05  
   last obs. used      2015-08-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53371  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 18:31:33  

Additional Information
 Earth MOID = 1.76839 au 
 Jupiter MOID = 1.77933 au 
 T_jup = 3.218 
[ 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 15.6 mag n/a MPO338376  

172947 Baeyens           Discovered 2005 May 13 by A. D. Grauer at Mt. Lemmon.
Dennis A. Baeyens (b. 1946) is a molecular Biologist who earned a PhD at Michigan State University.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121029/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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