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JPL Small-Body Database Browser
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226154 (2002 SD18)
Classification: Main-belt Asteroid          SPK-ID: 2226154
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .08971569643986668 4.4351e-08  
a 2.271177916275975 1.275e-08 au
q 2.067417607778431 1.05e-07 au
i 4.14579752668949 6.5058e-06 deg
node 179.6498143921075 6.2153e-05 deg
peri 292.5193580740076 7.1982e-05 deg
M 211.0167729687099 3.5844e-05 deg
tp 2459117.880478515851
(2020-Sep-25.38047852)
0.00012522 TDB
period 1250.187527664359
3.42
1.0528e-05
2.882e-08
d
yr
n .2879568001070718 2.4249e-09 deg/d
Q 2.47493822477352 1.3894e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      8801 days (24.10 yr)  
   first obs. used      1995-09-22  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61646  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:50:04  

Additional Information
 Earth MOID = 1.08831 au 
 Jupiter MOID = 2.59678 au 
 T_jup = 3.604 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO450048  

226154 (2002 SD18)          Discovered 2002-Sep-28 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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