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JPL Small-Body Database Browser
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154475 (2003 EU2)
Classification: Main-belt Asteroid          SPK-ID: 2154475
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302529298437975 5.4169e-08  
a 2.38058931880871 1.2357e-08 au
q 2.070510585279025 1.268e-07 au
i 1.472673536812772 6.2741e-06 deg
node 14.32456771231411 0.00016897 deg
peri 198.5970788432327 0.00017017 deg
M 207.5436142465119 2.2914e-05 deg
tp 2459568.656875949847
(2021-Dec-20.15687595)
8.7683e-05 TDB
period 1341.606481952595
3.67
1.0446e-05
2.86e-08
d
yr
n .2683350183848623 2.0894e-09 deg/d
Q 2.690668052338395 1.3967e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      10096 days (27.64 yr)  
   first obs. used      1992-03-06  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56167  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 17:57:37  

Additional Information
 Earth MOID = 1.06438 au 
 Jupiter MOID = 2.27499 au 
 T_jup = 3.527 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO449832  
rotation period rot_per 13.15 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.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

154475 (2003 EU2)          Discovered 2003-Mar-05 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2003 EU2 = 1992 EO2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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