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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457208.5 (2015-Jul-05.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860346453580405 1.0036e-07  
q 2.133238045427154 2.6499e-07 au
tp 2457369.159131879073
(2015-Dec-12.65913188)
0.00016219 TDB
node 4.462709313084388 4.3367e-05 deg
peri 344.7941007962717 6.3995e-05 deg
i 13.79325198648414 1.1472e-05 deg
  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
 Jupiter MOID = 2.34104 au 
 T_jup = 3.340 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.007221199151069E-14 -2.643303876024948E-14 -5.992953745940701E-12 -3.225979435253507E-14 -1.637621190158238E-12 -5.00954356814754E-14
q -2.643303876024948E-14 7.022219537204043E-14 1.678409723983052E-11 7.480135369462488E-14 4.521872973984522E-12 1.390024818999402E-13
tp -5.992953745940701E-12 1.678409723983052E-11 2.630673572135281E-8 2.397104413784843E-11 7.714759850876003E-9 7.576844603389473E-11
node -3.225979435253507E-14 7.480135369462488E-14 2.397104413784843E-11 1.880707586763452E-9 -1.815057697243025E-9 -1.905297790165157E-10
peri -1.637621190158238E-12 4.521872973984522E-12 7.714759850876003E-9 -1.815057697243025E-9 4.09536857093163E-9 2.064955906427963E-10
i -5.00954356814754E-14 1.390024818999402E-13 7.576844603389473E-11 -1.905297790165157E-10 2.064955906427963E-10 1.316123604142307E-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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