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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846807281058427 1.3678e-07  
a 2.62263700323793 5.1431e-08 au
q 2.138286491922624 3.8085e-07 au
i 13.7776063366299 1.312e-05 deg
node 4.415237460714457 5.0628e-05 deg
peri 344.524282541676 7.0131e-05 deg
M 286.3397163022495 4.5822e-05 deg
tp 2458917.921682981380
(2020-Mar-09.42168298)
0.00020306 TDB
period 1551.33540270069
4.25
4.5634e-05
1.249e-07
d
yr
n .2320581348000458 6.8262e-09 deg/d
Q 3.106987514553236 6.093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      5741 days (15.72 yr)  
   first obs. used      2001-04-16  
   last obs. used      2017-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62312  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:28  

Additional Information
 Earth MOID = 1.13516 au 
 Jupiter MOID = 2.33423 au 
 T_jup = 3.339 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456675.5 (2014-Jan-18.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860813577294206 1.36e-07  
q 2.132307743033444 3.7822e-07 au
tp 2457369.523179711293
(2015-Dec-13.02317971)
0.0001773 TDB
node 4.470725932842935 5.0567e-05 deg
peri 344.9127036240402 6.9836e-05 deg
i 13.79487248286598 1.3132e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      5741 days (15.72 yr)  
   first obs. used      2001-04-16  
   last obs. used      2017-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62312  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:28  

Additional Information
 Jupiter MOID = 2.33423 au 
 T_jup = 3.339 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.849555633394747E-14 -5.120062174439101E-14 -1.240874484441911E-11 -5.064757826279141E-14 -2.740250660175434E-12 -1.029555210634155E-13
q -5.120062174439101E-14 1.430527850695346E-13 3.564206530770006E-11 1.426682094522253E-13 7.747575281324884E-12 2.913360671903343E-13
tp -1.240874484441911E-11 3.564206530770006E-11 3.143579966560473E-8 9.434103109221072E-11 8.579537910972577E-9 1.057582479599149E-10
node -5.064757826279141E-14 1.426682094522253E-13 9.434103109221072E-11 2.557018913705228E-9 -2.455710166241232E-9 -3.544142467121763E-10
peri -2.740250660175434E-12 7.747575281324884E-12 8.579537910972577E-9 -2.455710166241232E-9 4.877039617120333E-9 3.704179801088281E-10
i -1.029555210634155E-13 2.913360671903343E-13 1.057582479599149E-10 -3.544142467121763E-10 3.704179801088281E-10 1.724389459047111E-10

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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