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31003 (1995 WQ2)
Classification: Main-belt Asteroid          SPK-ID: 2031003
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08168083178567911 1.037e-07  
a 3.146227495275669 5.362e-08 AU
q 2.889241016474579 3.1594e-07 AU
i 17.4101305443413 1.0972e-05 deg
node 70.90665935273877 2.8179e-05 deg
peri 354.169813906757 7.6424e-05 deg
M 102.1624631398987 6.2946e-05 deg
tp 2456222.041157159541
(2012-Oct-21.54115716)
0.00035832 JED
period 2038.372774327099
5.58
5.2109e-05
1.427e-07
d
yr
n .1766114640727784 4.5149e-09 deg/d
Q 3.40321397407676 5.8e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      6772 days (18.54 yr)  
   first obs. used      1995-11-16  
   last obs. used      2014-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54089  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:28:45  

Additional Information
 Earth MOID = 1.90267 AU 
 T_jup = 3.133 
[ 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 13.6 mag n/a MPO259552  

31003 (1995 WQ2)          Discovered 1995-Nov-16 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

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