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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180520320285586 5.3929e-08  
a 3.106378715345128 3.2152e-08 AU
q 2.545614234722698 1.8241e-07 AU
i 1.852822760454553 6.2269e-06 deg
node 182.0397465411585 0.00015267 deg
peri 124.5098675036527 0.00015366 deg
M 269.3939587930274 1.9206e-05 deg
tp 2457503.808985964523
(2016-Apr-25.30898596)
0.0001105 JED
period 1999.769910853195
5.48
3.1048e-05
8.5e-08
d
yr
n .1800207104058323 2.7949e-09 deg/d
Q 3.667143195967558 3.7956e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1075  
   data-arc span      8501 days (23.27 yr)  
   first obs. used      1992-03-02  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56784  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:22:57  

Additional Information
 Earth MOID = 1.53233 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-July); Warner et al., 2009 Incomplete or inconclusive result.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) arXiv:1506.08493.]

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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