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JPL Small-Body Database Browser
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487329 (2014 QA172)
Classification: Main-belt Asteroid          SPK-ID: 2487329
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .06472775449578705 6.5628e-08  
a 2.880718137132503 3.6728e-08 au
q 2.694255720780629 1.9653e-07 au
i 5.980909162487804 7.2313e-06 deg
node 177.043407840302 5.4408e-05 deg
peri 152.2367504100783 8.219e-05 deg
M 73.712465213961 5.6251e-05 deg
tp 2458634.831110896694
(2019-May-31.33111090)
0.00028024 TDB
period 1785.868912335027
4.89
3.4154e-05
9.351e-08
d
yr
n .2015825447844877 3.8552e-09 deg/d
Q 3.067180553484377 3.9106e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      6025 days (16.50 yr)  
   first obs. used      2003-04-24  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48119  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:44:36  

Additional Information
 Earth MOID = 1.68523 au 
 Jupiter MOID = 2.17497 au 
 T_jup = 3.283 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457447.5 (2016-Feb-29.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06741501808539976 6.579e-08  
q 2.685329482048659 1.9748e-07 au
tp 2456844.224893837353
(2014-Jul-05.72489384)
0.00027562 TDB
node 177.119655084454 5.4293e-05 deg
peri 151.2804189613469 8.0276e-05 deg
i 5.986617392132557 7.243e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      6025 days (16.50 yr)  
   first obs. used      2003-04-24  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48119  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:44:36  

Additional Information
 Jupiter MOID = 2.17497 au 
 T_jup = 3.283 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.3283810529539E-15 -1.279862589921306E-14 6.767910944692408E-12 -2.716533080631416E-14 1.492600357891164E-12 1.139317746347907E-15
q -1.279862589921306E-14 3.899921023002653E-14 -2.234915430118695E-11 8.298939624099479E-14 -4.835603931732877E-12 -2.03904821891014E-15
tp 6.767910944692408E-12 -2.234915430118695E-11 7.596574210595085E-8 -1.433568301537386E-10 1.631611376383776E-8 2.245606229320746E-11
node -2.716533080631416E-14 8.298939624099479E-14 -1.433568301537386E-10 2.947723869397311E-9 -2.961339173028931E-9 -3.820903613520463E-11
peri 1.492600357891164E-12 -4.835603931732877E-12 1.631611376383776E-8 -2.961339173028931E-9 6.444169916418501E-9 4.285138683989626E-11
i 1.139317746347907E-15 -2.03904821891014E-15 2.245606229320746E-11 -3.820903613520463E-11 4.285138683989626E-11 5.246039175444741E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO450508  

487329 (2014 QA172)          Discovered 2007-Feb-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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