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201784 (2003 WS113)
Classification: Main-belt Asteroid          SPK-ID: 2201784
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05872845738922821 4.697e-08  
a 3.167540754890537 3.6659e-08 au
q 2.981515972638304 1.6436e-07 au
i 11.31530159646836 5.3379e-06 deg
node 29.25135799301188 2.5383e-05 deg
peri 62.02190997478042 6.0841e-05 deg
M 300.8134356850319 5.3317e-05 deg
tp 2459339.034063207176
(2021-May-04.53406321)
0.00030587 TDB
period 2059.120412971193
5.64
3.5747e-05
9.787e-08
d
yr
n .1748319319900969 3.0351e-09 deg/d
Q 3.353565537142769 3.8812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      415  
   data-arc span      6232 days (17.06 yr)  
   first obs. used      2003-10-25  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5485  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:44:08  

Additional Information
 Earth MOID = 2.01739 au 
 Jupiter MOID = 1.82194 au 
 T_jup = 3.170 
[ 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 15.2   n/a MPO320982  
rotation period rot_per 4.36 h n/a LCDB (Rev. 2020-October); 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.]

201784 (2003 WS113)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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