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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 ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1270199170308162 6.2495e-08  
a 3.142151390737435 3.3451e-08 au
q 2.743035581787702 1.9971e-07 au
i 13.66505295398879 6.7898e-06 deg
node 24.00956005619702 2.4901e-05 deg
peri 351.8200366736944 3.5185e-05 deg
M 270.251597353405 2.7819e-05 deg
tp 2457907.681393333098
(2017-Jun-03.18139333)
0.00016193 JED
period 2034.412827589666
5.57
3.2487e-05
8.894e-08
d
yr
n .1769552350033701 2.8258e-09 deg/d
Q 3.541267199687168 3.77e-08 au
  Orbit Determination Parameters
   # obs. used (total)      931  
   data-arc span      9346 days (25.59 yr)  
   first obs. used      1989-11-21  
   last obs. used      2015-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52546  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:18:40  

Additional Information
 Earth MOID = 1.74394 au 
 Jupiter MOID = 1.91601 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 13.0 mag n/a MPO302166  

16458 (1989 WZ2)          Discovered 1989-Nov-21 by Oshima, Y. at Gekko
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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