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9644 (1994 WQ3)
Classification: Main-belt Asteroid          SPK-ID: 2009644
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ 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 .1498031545379196 7.6151e-08  
a 2.909975987534301 2.6202e-08 AU
q 2.474052404972065 2.2666e-07 AU
i 8.403698115628771 7.3324e-06 deg
node 168.3178025149786 3.8421e-05 deg
peri 169.3785811638622 4.3829e-05 deg
M 47.65609165831312 1.881e-05 deg
tp 2456560.479433502165
(2013-Sep-24.97943350)
9.4745e-05 JED
period 1813.144992223629
4.96
2.4489e-05
6.705e-08
d
yr
n .1985500340811125 2.6817e-09 deg/d
Q 3.345899570096536 3.0127e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1065  
   data-arc span      6977 days (19.10 yr)  
   first obs. used      1994-11-26  
   last obs. used      2014-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50462  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:35:59  

Additional Information
 Earth MOID = 1.46444 AU 
 T_jup = 3.251 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO267746  

9644 (1994 WQ3)          Discovered 1994-Nov-26 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 19981110/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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