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16458 (1989 WZ2)
Classification: Main-belt Asteroid          SPK-ID: 2016458
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1272025047776393 7.3771e-08  
a 3.141062303925023 3.5078e-08 AU
q 2.741511311203138 2.2991e-07 AU
i 13.66742930981085 7.1947e-06 deg
node 24.0161000239257 2.777e-05 deg
peri 352.0102169883038 3.904e-05 deg
M 163.8193781878451 2.7887e-05 deg
tp 2455875.213926772656
(2011-Nov-09.71392677)
0.00015199 JED
period 2033.355211371196
5.57
3.4062e-05
9.326e-08
d
yr
n .1770472753539375 2.9658e-09 deg/d
Q 3.540613296646908 3.954e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      851  
   data-arc span      8985 days (24.60 yr)  
   first obs. used      1989-11-21  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5354  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:36:33  

Additional Information
 Earth MOID = 1.74274 AU 
 T_jup = 3.154 
[ 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 12.9 mag n/a MPO253478  

16458 (1989 WZ2)          Discovered 1989-Nov-21 by Oshima, Y. at Gekko (888)
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 WZ2 = 1998 HX87 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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