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190340 (1998 SX168)
Classification: Main-belt Asteroid          SPK-ID: 2190340
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .190125474759343 8.3581e-08  
a 2.263724320314248 1.4846e-08 au
q 1.833332659190231 1.8566e-07 au
i 6.393635980529957 7.199e-06 deg
node 163.291186405788 4.3035e-05 deg
peri 189.6308659036509 4.5146e-05 deg
M 202.3279365329554 1.4288e-05 deg
tp 2459745.361325372614
(2022-Jun-14.86132537)		 5.2612e-05 TDB
period 1244.038245082895
3.41		 1.2238e-05
3.351e-08		 d
yr
n .2893801709255424 2.8468e-09 deg/d
Q 2.694115981438266 1.7669e-08 au
   Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      7858 days (21.51 yr)  
   first obs. used      1998-09-18  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56218  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:14  

Additional Information
 Earth MOID = .826429 au 
 Jupiter MOID = 2.7408 au 
 T_jup = 3.586 
[ 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 17.22   n/a E2021B55  

190340 (1998 SX168)          Discovered 1998-Sep-18 by LONEOS at Anderson Mesa
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

Alternate Designations
 1998 SX168 = 2005 WU155 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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