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447142 (2005 EQ203)
Classification: Main-belt Asteroid          SPK-ID: 2447142
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1323459229715014 4.0262e-07  
a 2.588175280298452 1.0009e-07 au
q 2.245640834015329 9.6173e-07 au
i 14.06696475219439 1.4298e-05 deg
node 327.9166458011942 3.8512e-05 deg
peri 245.3938743017234 5.9757e-05 deg
M 83.9448855747914 4.9043e-05 deg
tp 2458245.865735121686
(2018-May-07.36573512)
0.00019975 TDB
period 1520.859007454908
4.16
8.8223e-05
2.415e-07
d
yr
n .2367083327483752 1.3731e-08 deg/d
Q 2.930709726581575 1.1334e-07 au
  Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      5352 days (14.65 yr)  
   first obs. used      2005-02-03  
   last obs. used      2019-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61718  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:20:19  

Additional Information
 Earth MOID = 1.28289 au 
 Jupiter MOID = 2.17673 au 
 T_jup = 3.367 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457305.5 (2015-Oct-10.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1316752283687812 4.0265e-07  
q 2.248246338340806 9.6124e-07 au
tp 2456725.105485737875
(2014-Mar-08.60548574)
0.0001936 TDB
node 327.9753333699217 3.8501e-05 deg
peri 245.5525611369925 6.0358e-05 deg
i 14.0670317416402 1.4303e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      5352 days (14.65 yr)  
   first obs. used      2005-02-03  
   last obs. used      2019-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61718  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:20:19  

Additional Information
 Jupiter MOID = 2.17673 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.621279838099617E-13 -3.868358158377923E-13 -2.008419677083207E-11 -1.85781722055243E-12 -9.509413094566878E-12 -2.448713335327927E-13
q -3.868358158377923E-13 9.239902715190856E-13 4.92477422769867E-11 4.440317429791936E-12 2.304323302990535E-11 5.881234134484394E-13
tp -2.008419677083207E-11 4.92477422769867E-11 3.748090514742775E-8 2.766279471477639E-10 8.796654284914947E-9 1.714761075296505E-11
node -1.85781722055243E-12 4.440317429791936E-12 2.766279471477639E-10 1.482318482216051E-9 -1.29746470526191E-9 2.644130311774642E-10
peri -9.509413094566878E-12 2.304323302990535E-11 8.796654284914947E-9 -1.29746470526191E-9 3.643103290555371E-9 -2.432995541038498E-10
i -2.448713335327927E-13 5.881234134484394E-13 1.714761075296505E-11 2.644130311774642E-10 -2.432995541038498E-10 2.045650933849982E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a E2015T44  

447142 (2005 EQ203)          Discovered 2005-Feb-03 by LINEAR at Socorro
Reference: Last Updated: 2015-10-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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