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50412 Ewen (2000 DG1)
Classification: Main-belt Asteroid          SPK-ID: 2050412
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08341839978180353 7.0728e-08  
a 2.687914282962417 2.7758e-08 AU
q 2.463692774727039 1.8573e-07 AU
i 3.044633681514469 6.0436e-06 deg
node 94.64565007166892 0.00015219 deg
peri 309.4103386784259 0.00015847 deg
M 122.8624986238629 4.3961e-05 deg
tp 2455851.163581304451
(2011-Oct-16.66358130)		 0.00019627 JED
period 1609.613290836879
4.41		 2.4933e-05
6.826e-08		 d
yr
n .2236562049092095 3.4645e-09 deg/d
Q 2.912135791197795 3.0073e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      6203 days (16.98 yr)  
   first obs. used      1996-04-14  
   last obs. used      2013-04-08  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .55875  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 16:21:00  

Additional Information
 Earth MOID = 1.47332 AU 
 T_jup = 3.366 
[ 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 14.259 mag .61391 1 autocmod 2.5c

50412 Ewen           Discovered 2000 Feb. 26 by W. K. Y. Yeung at Rock Finder Observatory.
Harry Ewen (b. 1957) is a Canadian amateur astronomer who devotes his time to astronomical education for school kids around Drumheller, Alberta. This minor planet was one of the 15 found using his 0.40-m telescope.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 2000 DG1 = 1996 HU17 = 1998 XD55 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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