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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07290787692800488 3.6687e-08  
a 2.842302493119494 1.5499e-08 au
q 2.635076252758976 1.0641e-07 au
i 1.025110710071188 4.2004e-06 deg
node 237.5208394319978 0.00021652 deg
peri 185.2440197130799 0.00021861 deg
M 308.7420164514544 2.8525e-05 deg
tp 2458849.708520841091
(2020-Jan-01.20852084)
0.00013842 TDB
period 1750.26525219872
4.79
1.4316e-05
3.92e-08
d
yr
n .2056831097730818 1.6823e-09 deg/d
Q 3.049528733480011 1.6629e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1088  
   data-arc span      10644 days (29.14 yr)  
   first obs. used      1990-10-16  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52999  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:08:29  

Additional Information
 Earth MOID = 1.64772 au 
 Jupiter MOID = 2.1745 au 
 T_jup = 3.305 
[ 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-January); 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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