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227444 (2005 WS38)
Classification: Main-belt Asteroid          SPK-ID: 2227444
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1120782504799171 4.7207e-08  
a 2.524875716619084 1.9056e-08 au
q 2.24189206362119 1.1725e-07 au
i 14.3895074578168 6.1183e-06 deg
node 87.31174918651507 2.0486e-05 deg
peri 38.48317713324961 3.8745e-05 deg
M 233.1156125367799 3.5215e-05 deg
tp 2459716.992621597147
(2022-May-17.49262160)
0.00014652 TDB
period 1465.407584750096
4.01
1.6589e-05
4.542e-08
d
yr
n .2456654406230556 2.7811e-09 deg/d
Q 2.807859369616978 2.1191e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      6840 days (18.73 yr)  
   first obs. used      2001-12-19  
   last obs. used      2020-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57262  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:47  

Additional Information
 Earth MOID = 1.27393 au 
 Jupiter MOID = 2.35118 au 
 T_jup = 3.402 
[ 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 16.98   n/a E2021B55  

227444 (2005 WS38)          Discovered 2005-Nov-22 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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