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180643 Cardoen (2004 GK20)
Classification: Main-belt Asteroid          SPK-ID: 2180643
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09006613845010454 4.1554e-08  
a 2.554266886151964 1.6102e-08 au
q 2.324213931145284 1.1009e-07 au
i 9.073127584348098 6.4617e-06 deg
node 169.6993338027088 2.5762e-05 deg
peri 56.59939549516416 4.2921e-05 deg
M 14.53087218470568 3.4569e-05 deg
tp 2459140.315172717433
(2020-Oct-17.81517272)
0.00014306 TDB
period 1491.069327863814
4.08
1.4099e-05
3.86e-08
d
yr
n .2414374658995603 2.283e-09 deg/d
Q 2.784319841158644 1.7552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      7268 days (19.90 yr)  
   first obs. used      2000-04-28  
   last obs. used      2020-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58168  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:27:20  

Additional Information
 Earth MOID = 1.32931 au 
 Jupiter MOID = 2.20758 au 
 T_jup = 3.415 
[ 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 16.80   n/a E2021B55  

180643 Cardoen           Discovered 2004 Apr. 14 by M. Ory at Vicques.
Dany Cardoen (b. 1949) is a French amateur astronomer and optician. In Puimichel in 1986 he built and installed the first one-meter telescope made by an amateur.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100923/MPCPages.arcLast Updated: 2010-12-06

[ show close-approach data ]
Alternate Designations
 2004 GK20 = 2001 SU191 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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