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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2284337268478698 5.1327e-08  
a 2.656700937737108 2.3279e-08 AU
q 2.04982084140959 1.3333e-07 AU
i 11.53744666661396 9.5438e-06 deg
node 57.45434397739821 3.184e-05 deg
peri 68.49831313531901 3.8919e-05 deg
M 101.6434806433385 2.2501e-05 deg
tp 2456553.930088668349
(2013-Sep-18.43008867)
9.6039e-05 JED
period 1581.657446811671
4.33
2.0788e-05
5.691e-08
d
yr
n .2276093352107901 2.9916e-09 deg/d
Q 3.263581034064626 2.8596e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      22802 days (62.43 yr)  
   first obs. used      1953-01-10  
   last obs. used      2015-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50376  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:19:14  

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  
rotation period rot_per 14.666 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]

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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