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172765 (2004 DW51)
Classification: Main-belt Asteroid          SPK-ID: 2172765
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08850575836385643 5.3373e-08  
a 2.972585463425069 2.8242e-08 au
q 2.709494532683258 1.5594e-07 au
i 3.265718075389095 5.9835e-06 deg
node 85.05495327441224 9.8373e-05 deg
peri 115.9797513746553 0.00010411 deg
M 37.42760800296561 3.755e-05 deg
tp 2458805.879079252482
(2019-Nov-18.37907925)
0.00019392 TDB
period 1871.974598631978
5.13
2.6678e-05
7.304e-08
d
yr
n .1923103017867255 2.7407e-09 deg/d
Q 3.23567639416688 3.0742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      7616 days (20.85 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57026  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:53:41  

Additional Information
 Earth MOID = 1.70841 au 
 Jupiter MOID = 1.72458 au 
 T_jup = 3.254 
[ 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 15.7   n/a MPO433109  

172765 (2004 DW51)          Discovered 2004-Feb-23 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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