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226621 (2004 EK6)
Classification: Main-belt Asteroid          SPK-ID: 2226621
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1090012486442557 4.4893e-08  
a 2.287150114294602 1.2789e-08 au
q 2.037847895999638 9.8582e-08 au
i 2.259081002215815 4.5312e-06 deg
node 181.3225476544815 0.00011433 deg
peri 53.63473888356793 0.00011657 deg
M 195.8868357047535 2.4234e-05 deg
tp 2459576.445448128253
(2021-Dec-27.94544813)
8.7231e-05 TDB
period 1263.398717687005
3.46
1.0597e-05
2.901e-08
d
yr
n .2849456746790736 2.39e-09 deg/d
Q 2.536452332589566 1.4183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      8265 days (22.63 yr)  
   first obs. used      1997-03-11  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5218  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:54:42  

Additional Information
 Earth MOID = 1.02742 au 
 Jupiter MOID = 2.45275 au 
 T_jup = 3.592 
[ 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 17.0   n/a MPO433484  

226621 (2004 EK6)          Discovered 2004-Mar-12 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 EK6 = 1998 SM31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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