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118435 (1999 TK273)
Classification: Main-belt Asteroid          SPK-ID: 2118435
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613251769042355 3.7883e-08  
a 3.0400527335811 2.2987e-08 au
q 2.549615688537924 1.2101e-07 au
i 21.83093091969661 8.8296e-06 deg
node 322.2592456132906 1.2176e-05 deg
peri 116.021850983887 3.1927e-05 deg
M 271.7925731376308 2.689e-05 deg
tp 2459474.876050484525
(2021-Sep-17.37605048)
0.00014439 TDB
period 1936.065751480217
5.30
2.1959e-05
6.012e-08
d
yr
n .1859440980890047 2.109e-09 deg/d
Q 3.530489778624275 2.6695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      7657 days (20.96 yr)  
   first obs. used      1999-10-05  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 20:11:50  

Additional Information
 Earth MOID = 1.64095 au 
 Jupiter MOID = 1.80849 au 
 T_jup = 3.112 
[ 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 14.0   n/a MPO351683  
diameter diameter 9.862 km 0.359 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.055   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

118435 (1999 TK273)          Discovered 1999-Oct-05 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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