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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05793817094704478 6.4548e-08  
a 3.023687734873815 3.5784e-08 AU
q 2.848500798000213 1.9092e-07 AU
i 10.39221223301742 8.4245e-06 deg
node 35.58756046427587 3.9233e-05 deg
peri 64.72409044199858 8.8815e-05 deg
M 232.8553914367786 7.8697e-05 deg
tp 2457678.764805617131
(2016-Oct-17.26480562)
0.00042187 JED
period 1920.453669105077
5.26
3.4091e-05
9.334e-08
d
yr
n .1874557068423101 3.3276e-09 deg/d
Q 3.198874671747417 3.7857e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      794  
   data-arc span      22512 days (61.63 yr)  
   first obs. used      1952-12-11  
   last obs. used      2014-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51272  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:27:33  

Additional Information
 Earth MOID = 1.88345 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 12.7 mag n/a MPO302166  

16457 (1989 VF)          Discovered 1989-Nov-02 by Ueda, S., Kaneda, H. at Kushiro (399)
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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