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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07436943326910991 1.6948e-07  
a 3.006555538796803 7.9845e-08 AU
q 2.782959707284382 5.1517e-07 AU
i 11.44069254816448 1.8427e-05 deg
node 54.38330663725466 4.2006e-05 deg
peri 191.0203696273246 8.6504e-05 deg
M 254.7967834882331 8.2524e-05 deg
tp 2457356.953387436352
(2015-Nov-30.45338744)
0.00044636 JED
period 1904.154892970221
5.21
7.5853e-05
2.077e-07
d
yr
n .1890602499455542 7.5313e-09 deg/d
Q 3.230151370309225 8.5783e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      4096 days (11.21 yr)  
   first obs. used      2002-12-05  
   last obs. used      2014-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55914  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 13:07:35  

Additional Information
 Earth MOID = 1.77096 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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