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(2011 SN228)
Classification: Outer Main-belt Asteroid          SPK-ID: 3315939
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5480742596288436 7.1479e-07  
a 3.303868579017881 1.8762e-07 au
q 1.493103253661656 2.4348e-06 au
i 7.046946346126257 3.4006e-05 deg
node 225.459036182787 0.00012037 deg
peri 109.0232333938144 0.00033659 deg
M 201.345903058068 9.391e-05 deg
tp 2460167.176949702753
(2023-Aug-10.67694970)
0.00063482 TDB
period 2193.474411318617
6.01
0.00018684
5.115e-07
d
yr
n .1641231819903403 1.398e-08 deg/d
Q 5.114633904374106 2.9044e-07 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      4379 days (11.99 yr)  
   first obs. used      2005-10-27  
   last obs. used      2017-10-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .46767  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:25:37  

Additional Information
 Earth MOID = .502308 au 
 Jupiter MOID = .763162 au 
 T_jup = 2.898 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.9   n/a E2013Q25  

[ show close-approach data ]
Alternate Designations
 2011 SN228 = 2005 UV187 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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