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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1692525396224668 4.2798e-08  
a 3.112518884708073 3.0274e-08 au
q 2.585717158848343 1.2838e-07 au
i 17.51836216610733 6.3747e-06 deg
node 62.22822513505331 1.5361e-05 deg
peri 65.28232701432673 2.3572e-05 deg
M 194.8280670127496 1.9034e-05 deg
tp 2460120.738015234571
(2023-Jun-25.23801523)
0.00010951 TDB
period 2005.702055385023
5.49
2.9263e-05
8.012e-08
d
yr
n .1794882739604577 2.6187e-09 deg/d
Q 3.639320610567802 3.5398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      8479 days (23.21 yr)  
   first obs. used      1997-05-02  
   last obs. used      2020-07-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55329  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:19  

Additional Information
 Earth MOID = 1.65624 au 
 Jupiter MOID = 1.8297 au 
 T_jup = 3.126 
[ 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 14.92   n/a E2021B55  
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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