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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08250048369816054 5.4153e-08  
a 2.688458624686537 1.8186e-08 au
q 2.466659487747406 1.4943e-07 au
i 3.044402033567622 4.602e-06 deg
node 94.63923580633929 0.00012422 deg
peri 309.414021298439 0.00012888 deg
M 31.08732777717341 3.4812e-05 deg
tp 2457461.461730430377
(2016-Mar-13.96173043)
0.00015556 JED
period 1610.102270733525
4.41
1.6337e-05
4.473e-08
d
yr
n .2235882816536818 2.2687e-09 deg/d
Q 2.910257761625668 1.9686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      7241 days (19.82 yr)  
   first obs. used      1996-04-14  
   last obs. used      2016-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54053  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 17:49:42  

Additional Information
 Earth MOID = 1.47548 au 
 Jupiter MOID = 2.40019 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 14.5 mag n/a MPO351190  

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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