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JPL Small-Body Database Browser
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233923 (2009 TD20)
Classification: Main-belt Asteroid          SPK-ID: 2233923
[ 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1725014154935449 5.7524e-08  
a 3.055184560102076 3.6517e-08 au
q 2.528160898890445 1.8115e-07 au
i 1.301194617829125 7.5414e-06 deg
node 202.4585707983653 0.00022911 deg
peri 123.5971644635913 0.00023038 deg
M 346.6615804188946 2.0123e-05 deg
tp 2458672.769737406704
(2019-Jul-08.26973741)		 0.00010877 TDB
period 1950.538840693549
5.34		 3.4971e-05
9.575e-08		 d
yr
n .1845643842047234 3.309e-09 deg/d
Q 3.582208221313708 4.2816e-08 au
   Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      6356 days (17.40 yr)  
   first obs. used      2002-05-09  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58372  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 01:38:16  

Additional Information
 Earth MOID = 1.51583 au 
 Jupiter MOID = 1.76044 au 
 T_jup = 3.212 
[ 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 15.8   n/a MPO413119  
diameter diameter 4.534 km 1.460 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233923 (2009 TD20)          Discovered 2009-Oct-11 by Mt. Lemmon Survey at Mount Lemmon
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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