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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1005062117220154 2.2521e-08  
a 2.622284799897901 9.6158e-09 au
q 2.35872888860394 5.9527e-08 au
i 13.77431197360597 1.1208e-06 deg
node 199.6212652853936 1.8272e-06 deg
peri 33.28202853618166 8.0769e-06 deg
M 257.6623202976858 1.0454e-05 deg
tp 2459837.411349825821
(2022-Sep-14.91134983)
4.6315e-05 TDB
period 1551.022911590464
4.25
8.5313e-06
2.336e-08
d
yr
n .232104888528594 1.2767e-09 deg/d
Q 2.885840711191862 1.0582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2136  
   data-arc span      9562 days (26.18 yr)  
   first obs. used      1995-02-02  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47939  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:44:25  

Additional Information
 Earth MOID = 1.3617 au 
 Jupiter MOID = 2.10266 au 
 T_jup = 3.356 
[ 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 13.71   n/a MPCxxxxx  
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

Alternate Designations
 1998 QL53 = 2000 AD168 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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