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295891 (2008 WD74)
Classification: Main-belt Asteroid          SPK-ID: 2295891
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0276849092416718 4.7958e-08  
a 2.235486291986319 1.9934e-08 au
q 2.173597056881676 1.0499e-07 au
i 6.523049031958385 4.8269e-06 deg
node 261.7808172912829 5.6507e-05 deg
peri 144.7590773827046 0.00013391 deg
M 202.3305610841831 0.0001233 deg
tp 2459535.189265117009
(2021-Nov-16.68926512)
0.00042003 TDB
period 1220.833515776616
3.34
1.6329e-05
4.471e-08
d
yr
n .2948805020076723 3.9441e-09 deg/d
Q 2.297375527090961 2.0485e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      6266 days (17.16 yr)  
   first obs. used      2001-11-12  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65986  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:04:30  

Additional Information
 Earth MOID = 1.18743 au 
 Jupiter MOID = 2.80285 au 
 T_jup = 3.630 
[ 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 17.0   n/a MPO413252  

295891 (2008 WD74)          Discovered 2008-Nov-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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