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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08288291590801797 5.7668e-08  
a 2.689210980316368 2.312e-08 AU
q 2.466321332775887 1.5495e-07 AU
i 3.044451508751575 5.4257e-06 deg
node 94.64662600492497 0.00012759 deg
peri 309.4405616281763 0.0001326 deg
M 256.9610661245458 3.8361e-05 deg
tp 2457461.535742840859
(2016-Mar-14.03574284)
0.00017347 JED
period 1610.778190148249
4.41
2.0772e-05
5.687e-08
d
yr
n .2234944588906231 2.8821e-09 deg/d
Q 2.912100627856848 2.5036e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      6649 days (18.20 yr)  
   first obs. used      1996-04-14  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53811  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:36:07  

Additional Information
 Earth MOID = 1.47635 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 14.4 mag n/a MPO259670  

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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