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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08158000871479826 1.0152e-07  
a 3.146139960052143 4.5998e-08 AU
q 2.889477834693114 3.1266e-07 AU
i 17.4102821276516 1.0813e-05 deg
node 70.90522936998508 2.5431e-05 deg
peri 354.1075788322084 5.6364e-05 deg
M 137.5649343881603 4.9466e-05 deg
tp 2456221.619681584522
(2012-Oct-21.11968158)
0.00027497 JED
period 2038.287706650517
5.58
4.4701e-05
1.224e-07
d
yr
n .1766188349296291 3.8733e-09 deg/d
Q 3.402802085411172 4.975e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      7129 days (19.52 yr)  
   first obs. used      1995-11-16  
   last obs. used      2015-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52087  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:03:38  

Additional Information
 Earth MOID = 1.90349 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 13.7 mag n/a MPO302247  

31003 (1995 WQ2)          Discovered 1995-Nov-16 by Ueda, S., Kaneda, H. at Kushiro
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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