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423313 (2005 EF238)
Classification: Main-belt Asteroid          SPK-ID: 2423313
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07313221849773463 6.5518e-08  
a 3.069675663602354 5.9203e-08 au
q 2.845183472254608 2.1323e-07 au
i 9.890936432818767 9.8731e-06 deg
node 14.72509639767059 4.0643e-05 deg
peri 100.035844588359 9.0631e-05 deg
M 357.3824167595837 8.2695e-05 deg
tp 2459014.783517267320
(2020-Jun-14.28351727)
0.00045147 TDB
period 1964.43273965084
5.38
5.6831e-05
1.556e-07
d
yr
n .1832590104683282 5.3016e-09 deg/d
Q 3.294167854950099 6.3533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      4936 days (13.51 yr)  
   first obs. used      2005-03-11  
   last obs. used      2018-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .72152  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 13:14:33  

Additional Information
 Earth MOID = 1.88269 au 
 Jupiter MOID = 1.79559 au 
 T_jup = 3.204 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457008.5 (2014-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07261510595946413 6.5673e-08  
q 2.846979643428936 2.1248e-07 au
tp 2457062.738297551450
(2015-Feb-09.23829755)
0.00042437 TDB
node 14.8004442287812 4.071e-05 deg
peri 102.2258451729543 9.0865e-05 deg
i 9.883502296628675 9.8642e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      4936 days (13.51 yr)  
   first obs. used      2005-03-11  
   last obs. used      2018-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .72152  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 13:14:33  

Additional Information
 Jupiter MOID = 1.79559 au 
 T_jup = 3.204 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.312938207992881E-15 -1.34968564942987E-14 -5.606955112400345E-14 1.045961904195E-14 -1.480494831726566E-13 -1.503949608306337E-14
q -1.34968564942987E-14 4.514651008378357E-14 1.004090077636927E-11 -2.643466331977062E-14 2.333870436533017E-12 5.208356170991885E-14
tp -5.606955112400345E-14 1.004090077636927E-11 1.800919086199011E-7 -2.891505372030942E-11 3.450708672624502E-8 5.819728622385475E-11
node 1.045961904195E-14 -2.643466331977062E-14 -2.891505372030942E-11 1.657297208258445E-9 -1.637903146565636E-9 -5.058086848950654E-11
peri -1.480494831726566E-13 2.333870436533017E-12 3.450708672624502E-8 -1.637903146565636E-9 8.256400986914588E-9 6.118106421492561E-11
i -1.503949608306337E-14 5.208356170991885E-14 5.819728622385475E-11 -5.058086848950654E-11 6.118106421492561E-11 9.730330880112238E-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 16.0   n/a MPO456022  

423313 (2005 EF238)          Discovered 2005-Mar-11 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-02-04

[ show close-approach data ]
Alternate Designations
 2005 EF238 = 2008 UC240 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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