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442352 (2011 SP228)
Classification: Main-belt Asteroid          SPK-ID: 2442352
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 .08278515207069231 1.1735e-07  
a 2.655211143508496 4.9016e-08 au
q 2.435399085213348 3.3087e-07 au
i 13.65092928712763 1.2392e-05 deg
node 358.9693258362647 3.3714e-05 deg
peri 324.1724044321392 6.8448e-05 deg
M 51.28126642928314 5.2543e-05 deg
tp 2458775.385608050643
(2019-Oct-18.88560805)
0.00023209 TDB
period 1580.327217806221
4.33
4.376e-05
1.198e-07
d
yr
n .2278009237224585 6.3079e-09 deg/d
Q 2.875023201803644 5.3074e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      5226 days (14.31 yr)  
   first obs. used      2005-03-11  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60827  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:04  

Additional Information
 Earth MOID = 1.43737 au 
 Jupiter MOID = 2.46204 au 
 T_jup = 3.343 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457137.5 (2015-Apr-25.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08421906358937711 1.1771e-07  
q 2.432049841318383 3.3279e-07 au
tp 2457197.368618345509
(2015-Jun-23.86861835)
0.00024109 TDB
node 359.0524782634281 3.3679e-05 deg
peri 324.7457230663075 6.7281e-05 deg
i 13.6609854390978 1.2396e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      5226 days (14.31 yr)  
   first obs. used      2005-03-11  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60827  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:04  

Additional Information
 Jupiter MOID = 2.46204 au 
 T_jup = 3.343 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.385479318022719E-14 -3.885989167537953E-14 1.220309758326186E-11 -5.844604392111874E-14 2.903427049537519E-12 -5.881398741017642E-14
q -3.885989167537953E-14 1.107484986828205E-13 -3.692805882259598E-11 1.631888431031417E-13 -8.79696664669721E-12 1.694130508232385E-13
tp 1.220309758326186E-11 -3.692805882259598E-11 5.812550164650057E-8 -1.134721767485836E-10 1.409408348758262E-8 -5.071123901740119E-11
node -5.844604392111874E-14 1.631888431031417E-13 -1.134721767485836E-10 1.134303179484176E-9 -1.127656478145569E-9 -1.282861446862137E-10
peri 2.903427049537519E-12 -8.79696664669721E-12 1.409408348758262E-8 -1.127656478145569E-9 4.526795486247246E-9 1.133903112881451E-10
i -5.881398741017642E-14 1.694130508232385E-13 -5.071123901740119E-11 -1.282861446862137E-10 1.133903112881451E-10 1.536669800323701E-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 16.8   n/a MPO477088  

442352 (2011 SP228)          Discovered 2005-Mar-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SP228 = 2005 EN196 = 2013 CN119 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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