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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 ]

[ 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 .2284337258730175 5.1386e-08  
a 2.656700937873293 2.3281e-08 AU
q 2.049820844104556 1.3351e-07 AU
i 11.53744741236806 9.9427e-06 deg
node 57.45434202835969 3.2705e-05 deg
peri 68.49831218388543 4.0264e-05 deg
M 101.6434828705042 2.3219e-05 deg
tp 2456553.930078848975
(2013-Sep-18.43007885)
9.9303e-05 JED
period 1581.657446933287
4.33
2.0791e-05
5.692e-08
d
yr
n .2276093351932889 2.9919e-09 deg/d
Q 3.263581031642029 2.8599e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      598  
   data-arc span      22780 days (62.37 yr)  
   first obs. used      1953-01-10  
   last obs. used      2015-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50519  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:27:08  

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
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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