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JPL Small-Body Database Browser
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172947 Baeyens (2005 JQ138)
Classification: Main-belt Asteroid          SPK-ID: 2172947
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07460930608151582 6.974e-08  
a 3.002956073040473 3.1158e-08 au
q 2.778907604237649 2.1205e-07 au
i 11.44204937183114 8.5914e-06 deg
node 54.30264998738723 3.1666e-05 deg
peri 192.9650715685545 6.156e-05 deg
M 309.3238640569917 5.4863e-05 deg
tp 2459268.061047625495
(2021-Feb-22.56104763)
0.00029061 TDB
period 1900.736418686389
5.20
2.9583e-05
8.099e-08
d
yr
n .1894002747886518 2.9478e-09 deg/d
Q 3.227004541843296 3.3483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      325  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      2002-12-05  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53014  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:22:32  

Additional Information
 Earth MOID = 1.76697 au 
 Jupiter MOID = 1.78302 au 
 T_jup = 3.218 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456951.5 (2014-Oct-21.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07427542640977547 7.0834e-08  
q 2.781462087708331 2.1533e-07 au
tp 2457359.244813057770
(2015-Dec-02.74481306)
0.00028183 TDB
node 54.34069838998038 3.1666e-05 deg
peri 191.5633867921908 6.0995e-05 deg
i 11.44065616097875 8.5893e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      325  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      2002-12-05  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53014  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:22:32  

Additional Information
 Jupiter MOID = 1.78302 au 
 T_jup = 3.218 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.01749642354317E-15 -1.511552587065297E-14 -1.3104411861362E-11 3.879868995758494E-15 -2.403133053659184E-12 -4.495363485600428E-15
q -1.511552587065297E-14 4.636840565134084E-14 4.053416170964206E-11 -1.801244572629266E-14 7.405861004256858E-12 1.700661182103457E-14
tp -1.3104411861362E-11 4.053416170964206E-11 7.942765766180798E-8 -2.322587173720417E-11 1.474442769013515E-8 2.646532801972114E-11
node 3.879868995758494E-15 -1.801244572629266E-14 -2.322587173720417E-11 1.002712098785535E-9 -9.873438174561254E-10 -1.555719403572192E-10
peri -2.403133053659184E-12 7.405861004256858E-12 1.474442769013515E-8 -9.873438174561254E-10 3.720441475169212E-9 1.576221960626934E-10
i -4.495363485600428E-15 1.700661182103457E-14 2.646532801972114E-11 -1.555719403572192E-10 1.576221960626934E-10 7.377583753527855E-11

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 15.5   n/a MPO427054  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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