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442288 (2011 SX8)
Classification: Main-belt Asteroid          SPK-ID: 2442288
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1845640223929452 6.8023e-08  
a 2.798850424434363 4.6107e-08 au
q 2.282283332024555 1.911e-07 au
i 10.02854703466129 8.2114e-06 deg
node 179.7594800454962 3.7572e-05 deg
peri 166.2412748274349 4.6218e-05 deg
M 326.7365623047566 3.4762e-05 deg
tp 2459158.527471398223
(2020-Nov-05.02747140)
0.00016822 TDB
period 1710.282930603274
4.68
4.2262e-05
1.157e-07
d
yr
n .2104914886059326 5.2014e-09 deg/d
Q 3.315417516844172 5.4617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      5157 days (14.12 yr)  
   first obs. used      2005-04-07  
   last obs. used      2019-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:40:51  

Additional Information
 Earth MOID = 1.27708 au 
 Jupiter MOID = 2.1322 au 
 T_jup = 3.279 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457750.5 (2016-Dec-28.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1853897266361043 6.8088e-08  
q 2.278281673419901 1.9124e-07 au
tp 2457452.463089853826
(2016-Mar-04.96308985)
0.0001382 TDB
node 179.8502239850959 3.7552e-05 deg
peri 166.6941480856773 4.618e-05 deg
i 10.03365823911882 8.218e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      5157 days (14.12 yr)  
   first obs. used      2005-04-07  
   last obs. used      2019-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:40:51  

Additional Information
 Jupiter MOID = 2.1322 au 
 T_jup = 3.279 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.635985210144623E-15 -1.278324044906837E-14 3.150123232604047E-12 9.567942194009845E-15 6.202131173377045E-13 6.631984869938823E-15
q -1.278324044906837E-14 3.657454670463788E-14 -5.533879273719668E-12 -3.32884117445691E-14 -1.085284218894923E-12 -1.579838690117568E-14
tp 3.150123232604047E-12 -5.533879273719668E-12 1.909885137613126E-8 -2.379124304063268E-11 3.762781327902578E-9 5.785958579681415E-12
node 9.567942194009845E-15 -3.32884117445691E-14 -2.379124304063268E-11 1.410178059074373E-9 -1.392780510073173E-9 8.166262394558415E-11
peri 6.202131173377045E-13 -1.085284218894923E-12 3.762781327902578E-9 -1.392780510073173E-9 2.132582433715452E-9 -7.918582371161454E-11
i 6.631984869938823E-15 -1.579838690117568E-14 5.785958579681415E-12 8.166262394558415E-11 -7.918582371161454E-11 6.753569768615602E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO477087  

442288 (2011 SX8)          Discovered 2005-Apr-07 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SX8 = 2005 GB130 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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