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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271568787626568 6.2459e-08  
a 3.1411992774104 3.3492e-08 AU
q 2.741774181723381 1.9946e-07 AU
i 13.6670666935585 6.7906e-06 deg
node 24.01605635758444 2.4898e-05 deg
peri 351.9522178672633 3.5175e-05 deg
M 199.3018203270281 2.7177e-05 deg
tp 2457908.216263383552
(2017-Jun-03.71626338)
0.00016176 JED
period 2033.488216749477
5.57
3.2522e-05
8.904e-08
d
yr
n .1770356951344712 2.8314e-09 deg/d
Q 3.540624373097419 3.7751e-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 = 1.74428 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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