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16457 (1989 VF)
Classification: Main-belt Asteroid          SPK-ID: 2016457
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05766561803452466 5.0401e-08  
a 3.022172920612869 2.7495e-08 au
q 2.847897451338524 1.6116e-07 au
i 10.39443012566371 7.4475e-06 deg
node 35.58171483047182 3.007e-05 deg
peri 65.15285612336235 7.5502e-05 deg
M 344.929648135304 6.9016e-05 deg
tp 2457680.833794931589
(2016-Oct-19.33379493)
0.0003681 JED
period 1919.010679712184
5.25
2.6188e-05
7.17e-08
d
yr
n .1875966631170564 2.5601e-09 deg/d
Q 3.196448389887215 2.9081e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1052  
   data-arc span      23086 days (63.21 yr)  
   first obs. used      1952-12-11  
   last obs. used      2016-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50148  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:26:53  

Additional Information
 Earth MOID = 1.88172 au 
 Jupiter MOID = 1.94464 au 
 T_jup = 3.218 
[ 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 12.8 mag n/a MPO358790  
rotation period rot_per 14.4223 h n/a LCDB (Rev. 2016-February); 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. (2016) Astron. J. 150, A75.]

16457 (1989 VF)          Discovered 1989-Nov-02 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 VF = 1999 TR90 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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