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16721 (1995 WF3)
Classification: Main-belt Asteroid          SPK-ID: 2016721
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2284337216090862 5.1649e-08  
a 2.656700938203188 2.3294e-08 AU
q 2.049820855687083 1.3427e-07 AU
i 11.53745001807202 1.095e-05 deg
node 57.45433400669432 3.5348e-05 deg
peri 68.49830742527213 4.4271e-05 deg
M 101.6434927830618 2.5359e-05 deg
tp 2456553.930035215044
(2013-Sep-18.43003521)
0.00010899 JED
period 1581.65744722789
4.33
2.0802e-05
5.695e-08
d
yr
n .2276093351508939 2.9936e-09 deg/d
Q 3.263581020719293 2.8615e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      582  
   data-arc span      22451 days (61.47 yr)  
   first obs. used      1953-01-10  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51025  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:28:04  

Additional Information
 Earth MOID = 1.09738 AU 
 T_jup = 3.322 
[ 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 14.5 mag n/a MPO302168  

16721 (1995 WF3)          Discovered 1995-Nov-16 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 WF3 = 1992 AD4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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