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JPL Small-Body Database Browser
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39145 (2000 WU90)
Classification: Main-belt Asteroid          SPK-ID: 2039145
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07318928583746682 3.6692e-08  
a 2.843221007391264 1.5202e-08 au
q 2.635127692382214 1.0643e-07 au
i 1.02502717198664 4.1856e-06 deg
node 237.5205394655541 0.00020493 deg
peri 185.0893108177101 0.00020707 deg
M 31.13521527970748 2.7637e-05 deg
tp 2458849.051935311895
(2019-Dec-31.55193531)
0.00013463 TDB
period 1751.113740435646
4.79
1.4044e-05
3.845e-08
d
yr
n .2055834476579678 1.6488e-09 deg/d
Q 3.051314322400313 1.6314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1114  
   data-arc span      10696 days (29.28 yr)  
   first obs. used      1990-10-16  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53026  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:06:47  

Additional Information
 Earth MOID = 1.64809 au 
 Jupiter MOID = 2.17263 au 
 T_jup = 3.304 
[ 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 14.9   n/a MPO502429  
rotation period rot_per 3.43 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.]

39145 (2000 WU90)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 WU90 = 1998 MK23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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