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17428 Charleroi (1989 DL)
Classification: Outer Main-belt Asteroid          SPK-ID: 2017428
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155735546538436 5.0866e-08  
a 3.939667220071177 4.5338e-08 au
q 3.484345875294325 1.9487e-07 au
i 8.423723581422024 5.4344e-06 deg
node 255.9842567737356 3.185e-05 deg
peri 326.8998488124404 3.8242e-05 deg
M 250.9926620198912 2.4269e-05 deg
tp 2459465.350356084728
(2021-Sep-07.85035608)
0.00020021 TDB
period 2856.194215542768
7.82
4.9304e-05
1.35e-07
d
yr
n .1260418489894563 2.1758e-09 deg/d
Q 4.39498856484803 5.0578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1692  
   data-arc span      23616 days (64.66 yr)  
   first obs. used      1954-09-06  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49958  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:30:54  

Additional Information
 Earth MOID = 2.4795 au 
 Jupiter MOID = .708009 au 
 T_jup = 3.031 
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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 11.4   n/a MPO458985  
diameter diameter 30.297 km 0.500 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 6.034 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Stephens, R.D. (2017) Minor Planet Bull. 44, 36-41.]
[Warner, B.D.; Stephens, R.D.; Coley, D.R. (2018) Minor Planet Bull. 45, 147-161.]
geometric albedo albedo 0.064   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

17428 Charleroi           Discovered 1989 Feb. 28 by H. Debehogne at the European Southern Observatory.
Charleroi, built in 1666 on both sides of the Sambre river, is the largest city in Wallonia. Traces of metallurgy and commercial activity from prehistoric times have been found there, and the Romans built several temples and villas in the vicinity. The area is also known for its coal-mining industry, now terminated.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081113/MPCPages.arcLast Updated: 2008-11-17

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Alternate Designations
 1989 DL = 1985 SO2 = 1988 AQ = 2000 PT4 
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