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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05795328184863661 6.9004e-08  
a 3.023839926231515 3.4814e-08 AU
q 2.848598478721459 2.026e-07 AU
i 10.39208489699193 9.3524e-06 deg
node 35.59585941648798 4.1018e-05 deg
peri 64.60455083592595 9.9808e-05 deg
M 195.4895303355008 8.8292e-05 deg
tp 2457678.162745280727
(2016-Oct-16.66274528)
0.00047171 JED
period 1920.598664300359
5.26
3.3168e-05
9.081e-08
d
yr
n .1874415549128489 3.2371e-09 deg/d
Q 3.19908137374157 3.6832e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      22094 days (60.49 yr)  
   first obs. used      1952-12-11  
   last obs. used      2013-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5432  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 18:25:44  

Additional Information
 Earth MOID = 1.88316 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 12.6 mag n/a MPO263494  

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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