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85985 (1999 JW)
Classification: Main-belt Asteroid          SPK-ID: 2085985
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2531556604698034 5.7748e-08  
a 2.696086566522466 2.91e-08 au
q 2.013556991090707 1.5481e-07 au
i 13.87854226065595 9.4287e-06 deg
node 162.5555832562039 2.9642e-05 deg
peri 111.8697953038305 3.7801e-05 deg
M 249.4819511488103 2.7994e-05 deg
tp 2457896.897840946478
(2017-May-23.39784095)
0.00013173 JED
period 1616.959624227102
4.43
2.6179e-05
7.167e-08
d
yr
n .2226400675725456 3.6046e-09 deg/d
Q 3.378616141954226 3.6467e-08 au
  Orbit Determination Parameters
   # obs. used (total)      414  
   data-arc span      7329 days (20.07 yr)  
   first obs. used      1995-11-15  
   last obs. used      2015-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5525  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 16:16:59  

Additional Information
 Earth MOID = 1.04334 au 
 Jupiter MOID = 1.98857 au 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO273027  

85985 (1999 JW)          Discovered 1999-May-05 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 JW = 2003 EY23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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