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190857 (2001 SW265)
Classification: Main-belt Asteroid          SPK-ID: 2190857
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 .1364079597736946 4.0879e-08  
a 2.406678240643652 1.9375e-08 au
q 2.078388172005706 1.0105e-07 au
i 7.10379362050515 7.1291e-06 deg
node 21.30401412525751 3.6157e-05 deg
peri 287.8029421625848 4.4816e-05 deg
M 114.1291267994974 2.8864e-05 deg
tp 2458768.165923664555
(2019-Oct-11.66592366)
0.00010715 TDB
period 1363.720829601978
3.73
1.6468e-05
4.509e-08
d
yr
n .2639836484019029 3.1878e-09 deg/d
Q 2.734968309281597 2.2018e-08 au
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      8508 days (23.29 yr)  
   first obs. used      1997-10-26  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60334  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:09:24  

Additional Information
 Earth MOID = 1.07564 au 
 Jupiter MOID = 2.53181 au 
 T_jup = 3.499 
[ 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 16.3   n/a MPO436945  

190857 (2001 SW265)          Discovered 2001-Sep-25 by Yeung, W. K. Y. at Desert Eagle
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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