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22686 Mishchenko (1998 QL53)
Classification: Main-belt Asteroid          SPK-ID: 2022686
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1008915565637854 4.0551e-08  
a 2.621380057369046 1.0568e-08 au
q 2.356904943035818 1.0431e-07 au
i 13.77628675913638 4.2418e-06 deg
node 199.6349866756618 1.3356e-05 deg
peri 33.31080923303455 2.1693e-05 deg
M 165.697070394488 1.7077e-05 deg
tp 2458286.980670599245
(2018-Jun-17.48067060)
7.2752e-05 TDB
period 1550.220278323138
4.24
9.3741e-06
2.566e-08
d
yr
n .2322250618405078 1.4043e-09 deg/d
Q 2.885855171702274 1.1634e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1879  
   data-arc span      9419 days (25.79 yr)  
   first obs. used      1995-02-02  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49662  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:20:34  

Additional Information
 Earth MOID = 1.35938 au 
 Jupiter MOID = 2.10507 au 
 T_jup = 3.357 
[ 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 13.7   n/a MPO449120  
diameter diameter 4.620 km 0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.361   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22686 Mishchenko           Discovered 1998 Aug. 20 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Michael Ivanovich Mischenko (b. 1959), of the NASA Goddard Institute for Space Studies, studies electromagnetic scattering. He has developed a new branch of statistical optics based on numerically exact solutions of Maxwell's equations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090806/MPCPages.arcLast Updated: 2011-05-09

[ show close-approach data ]
Alternate Designations
 1998 QL53 = 2000 AD168 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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