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243485 (2009 TH26)
Classification: Main-belt Asteroid          SPK-ID: 2243485
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1179688576249976 7.5973e-08  
a 3.100918412785354 4.9627e-08 au
q 2.735106610040745 2.4961e-07 au
i 20.46507770686025 1.0879e-05 deg
node 40.72670825030752 2.4123e-05 deg
peri 265.4137748922122 5.4872e-05 deg
M 54.55522088837077 5.1085e-05 deg
tp 2458698.248994469876
(2019-Aug-02.74899447)
0.00028046 TDB
period 1994.499522117035
5.46
4.7879e-05
1.311e-07
d
yr
n .180496408250769 4.3329e-09 deg/d
Q 3.466730215529963 5.5481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      5843 days (16.00 yr)  
   first obs. used      2002-06-05  
   last obs. used      2018-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .583  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:33:09  

Additional Information
 Earth MOID = 1.81626 au 
 Jupiter MOID = 1.87574 au 
 T_jup = 3.114 
[ 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 15.2   n/a MPO450092  
diameter diameter 5.686 km 0.429 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243485 (2009 TH26)          Discovered 2009-Oct-14 by PMO NEO Survey Program at Purple Mountain
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2009 TH26 = 2008 OY18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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