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18449 Rikwouters (1994 PT19)
Classification: Main-belt Asteroid          SPK-ID: 2018449
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180749938686439 5.392e-08  
a 3.107042203524675 3.2024e-08 au
q 2.545444515741411 1.8245e-07 au
i 1.852844999877834 6.2244e-06 deg
node 182.0358063814826 0.00015265 deg
peri 124.4821296702212 0.00015364 deg
M 341.4408227438678 1.9715e-05 deg
tp 2457503.627710054294
(2016-Apr-25.12771005)
0.00011036 JED
period 2000.410638207514
5.48
3.0927e-05
8.467e-08
d
yr
n .1799630501478343 2.7823e-09 deg/d
Q 3.668639891307938 3.7812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1087  
   data-arc span      8565 days (23.45 yr)  
   first obs. used      1992-03-02  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56494  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:50:19  

Additional Information
 Earth MOID = 1.52923 au 
 Jupiter MOID = 1.58531 au 
 T_jup = 3.194 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO337414  
rotation period rot_per 3.65 h n/a LCDB (Rev. 2015-December); 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.]

18449 Rikwouters           Discovered 1994 Aug. 12 by E. W. Elst at the European Southern Observatory.
Rik Wouters (1882-1916) was a Belgian fauve painter and sculptor. Fascinated by the work of James Ensor, he started painting with a pallet knife. He chose his wife Nel as the primary model for his paintings (Woman in a white sweater, 1908) and sculptures (Domestic concerns, 1913).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

[ show close-approach data ]
Alternate Designations
 1994 PT19 = 1998 FY4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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