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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271568858009826 7.3814e-08  
a 3.141199279303123 3.4969e-08 AU
q 2.741774161266647 2.3013e-07 AU
i 13.66706615088185 7.194e-06 deg
node 24.01605968263565 2.7762e-05 deg
peri 351.9522123629828 3.9029e-05 deg
M 199.3018217033471 2.8134e-05 deg
tp 2457908.216256429719
(2017-Jun-03.71625643)
0.00016588 JED
period 2033.488218587387
5.57
3.3957e-05
9.297e-08
d
yr
n .1770356949744626 2.9563e-09 deg/d
Q 3.540624397339599 3.9416e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      855  
   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      .53447  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:27:33  

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 (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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