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JPL Small-Body Database Browser
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154639 (2003 YJ90)
Classification: Main-belt Asteroid          SPK-ID: 2154639
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2129944836742033 4.2005e-08  
a 2.281051943577027 1.1511e-08 au
q 1.7952004626208 9.7038e-08 au
i 2.26108872944419 4.619e-06 deg
node 66.11723302850402 0.00012553 deg
peri 341.6550584242203 0.00012608 deg
M 318.3881288916461 1.506e-05 deg
tp 2459145.950739379261
(2020-Oct-23.45073938)
5.3413e-05 TDB
period 1258.349235010053
3.45
9.5249e-06
2.608e-08
d
yr
n .2860890998969168 2.1655e-09 deg/d
Q 2.766903424533254 1.3962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      6733 days (18.43 yr)  
   first obs. used      2001-03-14  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51196  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:37:39  

Additional Information
 Earth MOID = .80536 au 
 Jupiter MOID = 2.61921 au 
 T_jup = 3.574 
[ 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 16.8   n/a MPO436782  
rotation period rot_per 22.591 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

154639 (2003 YJ90)          Discovered 2003-Dec-19 by Spacewatch at Kitt Peak
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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