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19141 Poelkapelle (1989 SB4)
Classification: Main-belt Asteroid          SPK-ID: 2019141
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .171749894095057 2.7852e-08  
a 2.333812230692784 7.5004e-09 au
q 1.932980227233549 6.4243e-08 au
i 4.081250143537869 3.3121e-06 deg
node 121.3405187133323 4.7025e-05 deg
peri 344.0851779749964 4.8363e-05 deg
M 206.7977527172494 1.0293e-05 deg
tp 2459754.691587800072
(2022-Jun-24.19158780)
3.7636e-05 TDB
period 1302.258779793298
3.57
6.2778e-06
1.719e-08
d
yr
n .2764427513071874 1.3326e-09 deg/d
Q 2.734644234152019 8.7885e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1821  
   data-arc span      11228 days (30.74 yr)  
   first obs. used      1989-09-26  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50709  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:46:21  

Additional Information
 Earth MOID = .950034 au 
 Jupiter MOID = 2.39445 au 
 T_jup = 3.546 
[ 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 14.68   n/a E2021B10  
diameter diameter 2.956 km 0.502 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.150 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.202   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19141 Poelkapelle           Discovered 1989 Sept. 26 by E. W. Elst at the European Southern Observatory.
Poelkapelle, a village in West Flanders near the city of Ypres, has a rich historical past. In 1037 the place Capelle ten Poele (chapel near the swamp) was mentioned, from which the name Poelkapelle was derived. From several ancient documents it became clear that the village was attacked by Vikings, Frisians, Saxons and Franks.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-04-15Last Updated: 2014-04-17

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Alternate Designations
 1989 SB4 = 1996 TO42 
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