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390921 (2005 EH241)
Classification: Main-belt Asteroid          SPK-ID: 2390921
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2874790378684385 6.4785e-08  
a 2.677260491181924 1.9976e-08 au
q 1.907604221053762 1.7515e-07 au
i 5.092929003357371 5.4345e-06 deg
node 67.00655720724238 7.9344e-05 deg
peri 61.66947307033776 7.9881e-05 deg
M 189.7270721426073 8.33e-06 deg
tp 2459757.293639816089
(2022-Jun-26.79363982)
4.0661e-05 TDB
period 1600.053007615934
4.38
1.7908e-05
4.903e-08
d
yr
n .2249925460509568 2.5181e-09 deg/d
Q 3.446916761310087 2.5719e-08 au
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      7093 days (19.42 yr)  
   first obs. used      2001-04-14  
   last obs. used      2020-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:37:20  

Additional Information
 Earth MOID = .928908 au 
 Jupiter MOID = 1.6495 au 
 T_jup = 3.312 
[ show covariance matrix ]

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 16.8   n/a MPO437600  

390921 (2005 EH241)          Discovered 2005-Mar-11 by CSS at Catalina
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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