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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1272025272218478 7.8895e-08  
a 3.141062305622425 3.4828e-08 AU
q 2.741511242185969 2.4805e-07 AU
i 13.66743858826014 7.8271e-06 deg
node 24.01607745402001 3.011e-05 deg
peri 352.0102494526452 4.2932e-05 deg
M 163.8193690095568 3.0443e-05 deg
tp 2455875.213977863522
(2011-Nov-09.71397786)
0.00016648 JED
period 2033.355213019407
5.57
3.3819e-05
9.259e-08
d
yr
n .1770472752104253 2.9447e-09 deg/d
Q 3.540613369058881 3.9259e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      827  
   data-arc span      8901 days (24.37 yr)  
   first obs. used      1989-11-24  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56401  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:09:06  

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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