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146716 (2001 WA51)
Classification: Main-belt Asteroid          SPK-ID: 2146716
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02239415882218062 4.5435e-08  
a 2.554742889261846 1.6339e-08 au
q 2.497531571249879 1.1373e-07 au
i 2.033809191454565 4.8756e-06 deg
node 249.6892488074433 0.00012513 deg
peri 324.5672926105914 0.00016459 deg
M 16.99490441250322 0.00010423 deg
tp 2458930.089820595598
(2020-Mar-21.58982060)
0.00043204 TDB
period 1491.486151986613
4.08
1.4308e-05
3.917e-08
d
yr
n .2413699916157393 2.3155e-09 deg/d
Q 2.611954207273812 1.6705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      21761 days (59.58 yr)  
   first obs. used      1960-09-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56587  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 23:56:23  

Additional Information
 Earth MOID = 1.48963 au 
 Jupiter MOID = 2.35304 au 
 T_jup = 3.437 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO426926  
rotation period rot_per 5.65 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

146716 (2001 WA51)          Discovered 2001-Nov-19 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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