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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1498030962310517 7.9601e-08  
a 2.909975985818568 2.7076e-08 AU
q 2.474052573184939 2.3656e-07 AU
i 8.403707980560212 7.7199e-06 deg
node 168.3177911478939 3.948e-05 deg
peri 169.3786150727873 4.502e-05 deg
M 47.65607373671696 1.928e-05 deg
tp 2456560.479523976808
(2013-Sep-24.97952398)
9.708e-05 JED
period 1813.144990620073
4.96
2.5305e-05
6.928e-08
d
yr
n .1985500342567114 2.7711e-09 deg/d
Q 3.345899398452196 3.1132e-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      .52127  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 01:39:47  

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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