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JPL Small-Body Database Browser
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305546 (2008 SP211)
Classification: Main-belt Asteroid          SPK-ID: 2305546
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1327300586029026 9.9051e-08  
a 2.17897299532467 2.2033e-08 au
q 1.889757781961084 2.2658e-07 au
i 4.508753079259466 5.5647e-06 deg
node 71.12771551708764 0.00010082 deg
peri 270.9107568308671 0.0001063 deg
M 274.6047142894558 3.2851e-05 deg
tp 2459279.181149933377
(2021-Mar-05.68114993)
0.00010966 TDB
period 1174.833167208761
3.22
1.7819e-05
4.879e-08
d
yr
n .3064264867966825 4.6478e-09 deg/d
Q 2.468188208688255 2.4958e-08 au
  Orbit Determination Parameters
   # obs. used (total)      92  
   data-arc span      5841 days (15.99 yr)  
   first obs. used      2003-01-29  
   last obs. used      2019-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64637  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:32:38  

Additional Information
 Earth MOID = .888121 au 
 Jupiter MOID = 2.89409 au 
 T_jup = 3.667 
[ 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 18.1   n/a MPO471208  

305546 (2008 SP211)          Discovered 2008-Sep-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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