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308620 (2005 WM191)
Classification: Main-belt Asteroid          SPK-ID: 2308620
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2339319752146343 5.99e-08  
a 3.177821073710328 4.5306e-08 au
q 2.434427113058581 2.0242e-07 au
i 15.04904752026119 6.2699e-06 deg
node 76.2729902232563 2.8782e-05 deg
peri 253.4907236086931 3.2983e-05 deg
M 253.4227102004376 1.5826e-05 deg
tp 2459613.068639623906
(2022-Feb-02.56863962)
9.5898e-05 TDB
period 2069.152918781686
5.67
4.425e-05
1.211e-07
d
yr
n .1739842409578734 3.7207e-09 deg/d
Q 3.921215034362075 5.5904e-08 au
  Orbit Determination Parameters
   # obs. used (total)      232  
   data-arc span      5324 days (14.58 yr)  
   first obs. used      2005-09-25  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59656  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:13:52  

Additional Information
 Earth MOID = 1.47445 au 
 Jupiter MOID = 1.67658 au 
 T_jup = 3.105 
[ 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 15.2   n/a MPO433986  
diameter diameter 5.039 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308620 (2005 WM191)          Discovered 2005-Nov-22 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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