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379372 (2009 WA250)
Classification: Main-belt Asteroid          SPK-ID: 2379372
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1364915156815239 7.6634e-08  
a 2.542354755231652 2.5951e-08 au
q 2.195344901289954 1.9602e-07 au
i 13.19861607371078 1.0743e-05 deg
node 70.29052432840555 2.7259e-05 deg
peri 35.77371430807978 5.2737e-05 deg
M 92.65845845442192 4.2122e-05 deg
tp 2458219.403269132544
(2018-Apr-10.90326913)
0.00017239 TDB
period 1480.650826710758
4.05
2.267e-05
6.207e-08
d
yr
n .2431363245848681 3.7226e-09 deg/d
Q 2.88936460917335 2.9493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      4899 days (13.41 yr)  
   first obs. used      2005-12-10  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57851  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:45:24  

Additional Information
 Earth MOID = 1.22492 au 
 Jupiter MOID = 2.33566 au 
 T_jup = 3.395 
[ 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 17.3   n/a MPO434347  
diameter diameter 1.980 km 0.401 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

379372 (2009 WA250)          Discovered 2009-Nov-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

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