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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .057808519424737 5.1737e-08  
a 3.022750966768165 2.8083e-08 au
q 2.848010208789605 1.6505e-07 au
i 10.39398221251519 7.5188e-06 deg
node 35.58058380787022 3.1784e-05 deg
peri 65.03653465712917 7.7283e-05 deg
M 307.531949597163 7.0116e-05 deg
tp 2457680.265660380249
(2016-Oct-18.76566038)
0.00037458 JED
period 1919.561275168776
5.26
2.6751e-05
7.324e-08
d
yr
n .1875428540140492 2.6136e-09 deg/d
Q 3.197491724746725 2.9707e-08 au
  Orbit Determination Parameters
   # obs. used (total)      994  
   data-arc span      23012 days (63.00 yr)  
   first obs. used      1952-12-11  
   last obs. used      2015-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49347  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:33:56  

Additional Information
 Earth MOID = 1.88296 au 
 Jupiter MOID = 1.94444 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. 2015-December); 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. 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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