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308285 (2005 JW13)
Classification: Main-belt Asteroid          SPK-ID: 2308285
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 .1973525409829217 7.2245e-08  
a 2.666095903252447 2.2526e-08 au
q 2.139935102241419 1.9178e-07 au
i 13.1806097237655 6.3165e-06 deg
node 224.1742622931166 2.3166e-05 deg
peri 2.297750554207339 2.9545e-05 deg
M 153.6308301728783 1.6257e-05 deg
tp 2458321.940469263686
(2018-Jul-22.44046926)
6.761e-05 TDB
period 1590.054748712789
4.35
2.0152e-05
5.517e-08
d
yr
n .2264072984225443 2.8694e-09 deg/d
Q 3.192256704263475 2.6972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      9096 days (24.90 yr)  
   first obs. used      1994-12-01  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54862  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:53:28  

Additional Information
 Earth MOID = 1.1307 au 
 Jupiter MOID = 1.79717 au 
 T_jup = 3.318 
[ 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 16.4   n/a MPO494637  

308285 (2005 JW13)          Discovered 2005-May-01 by NEAT at Palomar
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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