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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08158001621332212 1.0364e-07  
a 3.146139972088444 5.3243e-08 AU
q 2.889477822156088 3.1549e-07 AU
i 17.41028208714702 1.0957e-05 deg
node 70.90522831015204 2.8179e-05 deg
peri 354.1075578146435 7.6517e-05 deg
M 137.5649513992846 6.2971e-05 deg
tp 2456221.619580799376
(2012-Oct-21.11958080)
0.00035885 JED
period 2038.287718347444
5.58
5.1742e-05
1.417e-07
d
yr
n .1766188339160835 4.4834e-09 deg/d
Q 3.4028021220208 5.7586e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      546  
   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      .53768  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:58:04  

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 (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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