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12354 Hemmerechts (1993 QD3)
Classification: Main-belt Asteroid          SPK-ID: 2012354
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0536724631987143 3.4964e-08  
a 3.06610003527402 1.9606e-08 au
q 2.901534893967199 1.1038e-07 au
i 10.00873627906051 4.7799e-06 deg
node 161.9308096144993 2.2467e-05 deg
peri 307.0829414064017 4.9689e-05 deg
M 233.0518801024119 4.4107e-05 deg
tp 2459692.015118811836
(2022-Apr-22.51511881)
0.00024047 TDB
period 1961.001415169369
5.37
1.8809e-05
5.15e-08
d
yr
n .1835796737397598 1.7608e-09 deg/d
Q 3.230665176580842 2.0658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1484  
   data-arc span      9121 days (24.97 yr)  
   first obs. used      1993-08-18  
   last obs. used      2018-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51693  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:16:55  

Additional Information
 Earth MOID = 1.93028 au 
 Jupiter MOID = 1.82897 au 
 T_jup = 3.207 
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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 13.2   n/a MPO347622  

12354 Hemmerechts           Discovered 1993 Aug. 18 by E. W. Elst at Caussols.
Kristien Hemmerechts (b. 1955) is a Flemish author well-known for her emancipated novels. In 1990 she was awarded with the triennial prize of the Flemish Community. Wit Zand ("White Sand"), a novel written in 1992, takes place in the small French sea resort Wissant, near the English Channel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

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Alternate Designations
 1993 QD3 = 1996 DN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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