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379806 (2011 JK20)
Classification: Outer Main-belt Asteroid          SPK-ID: 2379806
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06541342012234087 9.4032e-08  
a 3.215711892267998 7.0842e-08 au
q 3.005361179266663 3.2426e-07 au
i 10.75887655450487 7.6584e-06 deg
node 71.89139082614452 4.9276e-05 deg
peri 119.3409553290374 7.1402e-05 deg
M 240.7516088775816 5.6236e-05 deg
tp 2459698.192656771251
(2022-Apr-28.69265677)
0.00034321 TDB
period 2106.270399739014
5.77
6.9602e-05
1.906e-07
d
yr
n .1709182259051864 5.648e-09 deg/d
Q 3.426062605269332 7.5476e-08 au
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      4012 days (10.98 yr)  
   first obs. used      2008-11-09  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62052  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 00:19:24  

Additional Information
 Earth MOID = 2.02099 au 
 Jupiter MOID = 1.60946 au 
 T_jup = 3.159 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457624.5 (2016-Aug-24.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06713133675426276 9.3764e-08  
q 3.001143691202038 3.2497e-07 au
tp 2457596.825527539238
(2016-Jul-27.32552754)
0.00029719 TDB
node 71.91194836589396 4.9321e-05 deg
peri 120.0136718160054 7.0627e-05 deg
i 10.75353847702618 7.6552e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      4012 days (10.98 yr)  
   first obs. used      2008-11-09  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62052  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 00:19:24  

Additional Information
 Jupiter MOID = 1.60946 au 
 T_jup = 3.159 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.791621779290654E-15 -2.985549810062584E-14 -1.892102667386474E-12 1.326375582967387E-13 -3.211960155216612E-13 -2.117190672100556E-14
q -2.985549810062584E-14 1.056046648148743E-13 1.603341160090485E-11 -4.52220703195317E-13 2.719668900423414E-12 8.03255576905332E-14
tp -1.892102667386474E-12 1.603341160090485E-11 8.831932988095717E-8 -5.967794255032795E-11 1.520269229772024E-8 5.409576973017014E-11
node 1.326375582967387E-13 -4.52220703195317E-13 -5.967794255032795E-11 2.432564520455061E-9 -2.397513117683925E-9 -1.858130311916308E-10
peri -3.211960155216612E-13 2.719668900423414E-12 1.520269229772024E-8 -2.397513117683925E-9 4.988237974528385E-9 1.913849642745832E-10
i -2.117190672100556E-14 8.03255576905332E-14 5.409576973017014E-11 -1.858130311916308E-10 1.913849642745832E-10 5.860219588776175E-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 16.3   n/a MPO455733  

379806 (2011 JK20)          Discovered 2008-Nov-09 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

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