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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458085.5 (2017-Nov-28.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1924411637196637 4.9004e-08  
q 2.571308745154004 1.679e-07 au
tp 2457463.745633967404
(2016-Mar-16.24563397)
9.2227e-05 TDB
node 125.8043714013191 3.7957e-05 deg
peri 144.8074878651822 4.1595e-05 deg
i 9.925499399366323 4.7092e-06 deg
  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
 Jupiter MOID = 1.40878 au 
 T_jup = 3.147 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.401405451439027E-15 -8.163076650783687E-15 -3.791361855508361E-13 -3.550465223355185E-14 -5.666663979639404E-15 -7.307319686009133E-15
q -8.163076650783687E-15 2.818877819733387E-14 7.750068202170008E-13 1.502503781396444E-13 -8.026579514178999E-14 2.747452227450295E-14
tp -3.791361855508361E-13 7.750068202170008E-13 8.505783261499228E-9 -2.183221293267513E-11 1.658463282298802E-9 6.337127053390984E-12
node -3.550465223355185E-14 1.502503781396444E-13 -2.183221293267513E-11 1.440704829589697E-9 -1.419376241121655E-9 2.508446633742268E-11
peri -5.666663979639404E-15 -8.026579514178999E-14 1.658463282298802E-9 -1.419376241121655E-9 1.730115983549843E-9 -2.322794103561786E-11
i -7.307319686009133E-15 2.747452227450295E-14 6.337127053390984E-12 2.508446633742268E-11 -2.322794103561786E-11 2.21768857475184E-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 16.03   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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