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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07423919146370882 1.6414e-07  
a 3.004144802318731 7.468e-08 AU
q 2.781119521154685 5.0424e-07 AU
i 11.44115080671023 1.7471e-05 deg
node 54.3337844156103 4.1941e-05 deg
peri 191.6896301843175 8.7336e-05 deg
M 291.9918240461316 8.4015e-05 deg
tp 2457359.784387999111
(2015-Dec-03.28438800)
0.00044993 JED
period 1901.86514879352
5.21
7.0918e-05
1.942e-07
d
yr
n .189287868400329 7.0583e-09 deg/d
Q 3.227170083482777 8.0225e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      4377 days (11.98 yr)  
   first obs. used      2002-12-05  
   last obs. used      2014-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55961  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 08:45:10  

Additional Information
 Earth MOID = 1.77071 AU 
 T_jup = 3.217 
[ 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 15.5 mag n/a MPO248298  

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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