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442354 (2011 SW229)
Classification: Main-belt Asteroid          SPK-ID: 2442354
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1841689686670241 1.0094e-07  
a 2.621039373378758 3.5959e-08 au
q 2.138325255147929 2.6623e-07 au
i 13.77861660703321 1.1466e-05 deg
node 4.376055698889974 4.342e-05 deg
peri 344.6572045565015 6.4499e-05 deg
M 19.10197491800862 4.0896e-05 deg
tp 2458918.259732539264
(2020-Mar-09.75973254)
0.00017538 TDB
period 1549.918079829181
4.24
3.1896e-05
8.733e-08
d
yr
n .2322703404038464 4.7799e-09 deg/d
Q 3.103753491609587 4.2582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      7129 days (19.52 yr)  
   first obs. used      2001-04-16  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61919  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:46:39  

Additional Information
 Earth MOID = 1.13606 au 
 Jupiter MOID = 2.34104 au 
 T_jup = 3.340 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO353532  

442354 (2011 SW229)          Discovered 2007-Oct-14 by CSS at Catalina
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SW229 = 2007 TE412 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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