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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08323497489144845 1.172e-07  
a 2.656450026073085 4.9516e-08 au
q 2.435340474852504 3.3069e-07 au
i 13.64872018807351 1.2389e-05 deg
node 358.9869278599996 3.3718e-05 deg
peri 324.0097673134865 6.8262e-05 deg
M 320.3139129063995 5.2924e-05 deg
tp 2458774.835841590491
(2019-Oct-18.33584159)
0.00023128 TDB
period 1581.433383053203
4.33
4.4216e-05
1.211e-07
d
yr
n .2276415838047911 6.3648e-09 deg/d
Q 2.877559577293666 5.3637e-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 = 1.4365 au 
 Jupiter MOID = 2.46207 au 
 T_jup = 3.343 
[ 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 16.9   n/a MPO440831  

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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