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385520 (2004 JK8)
Classification: Main-belt Asteroid          SPK-ID: 2385520
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1927958323888612 4.8998e-08  
a 3.180997879743663 2.9072e-08 au
q 2.567714745691281 1.6777e-07 au
i 9.929917056007504 4.7117e-06 deg
node 125.7860456852118 3.7943e-05 deg
peri 145.1497764370382 4.1574e-05 deg
M 335.0077272350226 1.5713e-05 deg
tp 2459540.362216638464
(2021-Nov-21.86221664)
9.0638e-05 TDB
period 2072.256432092991
5.67
2.8408e-05
7.778e-08
d
yr
n .1737236735882141 2.3816e-09 deg/d
Q 3.794281013796045 3.4677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      237  
   data-arc span      7498 days (20.53 yr)  
   first obs. used      2000-11-27  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54348  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:04:19  

Additional Information
 Earth MOID = 1.55875 au 
 Jupiter MOID = 1.40878 au 
 T_jup = 3.147 
[ 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 16.03   n/a MPCxxxxx  

385520 (2004 JK8)          Discovered 2004-May-12 by CSS at Catalina
Reference: Last Updated: 2014-02-19

[ show close-approach data ]
Alternate Designations
 2004 JK8 = 2009 DS108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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