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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2544485516618888 6.0164e-08  
a 2.693185597699741 2.964e-08 AU
q 2.007908423008383 1.6076e-07 AU
i 13.87596334122692 1.4819e-05 deg
node 162.57690593856 3.4158e-05 deg
peri 111.9617834718401 5.114e-05 deg
M 115.6259839993965 3.624e-05 deg
tp 2456281.997573925470
(2012-Dec-20.49757393)
0.0001579 JED
period 1614.35057182134
4.42
2.665e-05
7.296e-08
d
yr
n .2229998900386558 3.6813e-09 deg/d
Q 3.378462772391098 3.7182e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      385  
   data-arc span      6554 days (17.94 yr)  
   first obs. used      1995-11-15  
   last obs. used      2013-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59272  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Nov-21 23:55:03  

Additional Information
 Earth MOID = 1.03872 AU 
 T_jup = 3.283 
[ 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 (327)
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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