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118238 (1997 JT5)
Classification: Main-belt Asteroid          SPK-ID: 2118238
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1680262770694174 4.9455e-08  
a 3.115646843422179 3.2869e-08 au
q 2.592136303658868 1.5452e-07 au
i 17.54591199114092 7.3198e-06 deg
node 62.40354247738507 2.2023e-05 deg
peri 64.86344126992903 3.2019e-05 deg
M 159.3131402057458 2.2147e-05 deg
tp 2458111.565296105420
(2017-Dec-24.06529611)
0.00012501 TDB
period 2008.726292060791
5.50
3.1787e-05
8.703e-08
d
yr
n .1792180454962179 2.8361e-09 deg/d
Q 3.63915738318549 3.8392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      475  
   data-arc span      8042 days (22.02 yr)  
   first obs. used      1997-05-02  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56029  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:55:32  

Additional Information
 Earth MOID = 1.66234 au 
 Jupiter MOID = 1.82793 au 
 T_jup = 3.125 
[ 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 14.9   n/a MPO396011  
diameter diameter 7.269 km 0.338 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118238 (1997 JT5)          Discovered 1997-May-02 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1997 JT5 = 2000 WE90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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