Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
50412 Ewen (2000 DG1)
Classification: Main-belt Asteroid          SPK-ID: 2050412
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0824187872970412 3.1288e-08  
a 2.689282849953022 1.0321e-08 au
q 2.467635418761163 8.4673e-08 au
i 3.046315552355368 3.7011e-06 deg
node 94.58441492863643 6.6643e-05 deg
peri 311.3972201266706 7.0967e-05 deg
M 70.44688658516381 2.3136e-05 deg
tp 2459081.280951564128
(2020-Aug-19.78095156)
0.00010371 TDB
period 1610.842763075531
4.41
9.273e-06
2.539e-08
d
yr
n .2234854997968042 1.2865e-09 deg/d
Q 2.910930281144881 1.1171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1524  
   data-arc span      9096 days (24.90 yr)  
   first obs. used      1996-04-14  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52266  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:26:59  

Additional Information
 Earth MOID = 1.47784 au 
 Jupiter MOID = 2.38528 au 
 T_jup = 3.366 
[ 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 14.51   n/a MPCxxxxx  
diameter diameter 5.479 km 0.759 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.123   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-03 18:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin