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JPL Small-Body Database Browser
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233694 (2008 SM20)
Classification: Main-belt Asteroid          SPK-ID: 2233694
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07190430183735248 5.2851e-08  
a 2.632522814785801 2.5429e-08 au
q 2.443233099717726 1.3753e-07 au
i 4.167753344101861 6.6446e-06 deg
node 337.6377007891604 7.9567e-05 deg
peri 95.48549973806567 9.3993e-05 deg
M 114.2027562498684 5.2458e-05 deg
tp 2458105.584874035376
(2017-Dec-18.08487404)
0.00022404 TDB
period 1560.115107532441
4.27
2.2605e-05
6.189e-08
d
yr
n .2307522042840766 3.3435e-09 deg/d
Q 2.821812529853876 2.7258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      6237 days (17.08 yr)  
   first obs. used      2002-04-04  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5908  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:32:14  

Additional Information
 Earth MOID = 1.46212 au 
 Jupiter MOID = 2.35087 au 
 T_jup = 3.392 
[ 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 16.4   n/a MPO437098  
diameter diameter 2.533 km 0.558 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233694 (2008 SM20)          Discovered 2008-Sep-19 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

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