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226911 (2004 TF198)
Classification: Main-belt Asteroid          SPK-ID: 2226911
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03227097162026744 4.0753e-08  
a 2.773922993805494 2.3972e-08 au
q 2.684405803595589 1.1757e-07 au
i .4741681699754878 5.1612e-06 deg
node 122.3722704523143 0.00072751 deg
peri 158.8518184614307 0.00073458 deg
M 241.233346820966 0.00010266 deg
tp 2459557.213874843824
(2021-Dec-08.71387484)
0.00048197 TDB
period 1687.48541429099
4.62
2.1875e-05
5.989e-08
d
yr
n .2133351772710028 2.7655e-09 deg/d
Q 2.863440184015398 2.4746e-08 au
  Orbit Determination Parameters
   # obs. used (total)      274  
   data-arc span      7454 days (20.41 yr)  
   first obs. used      1999-09-06  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6328  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 06:00:25  

Additional Information
 Earth MOID = 1.66794 au 
 Jupiter MOID = 2.16423 au 
 T_jup = 3.335 
[ 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 16.5   n/a MPO422880  
diameter diameter 3.152 km 0.642 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226911 (2004 TF198)          Discovered 2004-Oct-07 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2004 TF198 = 2005 YQ15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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