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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1006615195503362 2.2533e-08  
a 2.62193769099288 9.5926e-09 au
q 2.358009458851237 5.9559e-08 au
i 13.77470372766175 1.1209e-06 deg
node 199.6296108337693 1.8274e-06 deg
peri 33.30839004813689 8.0648e-06 deg
M 212.1403037356134 1.0318e-05 deg
tp 2459837.411786473967
(2022-Sep-14.91178647)
4.6253e-05 TDB
period 1550.714961030625
4.25
8.5101e-06
2.33e-08
d
yr
n .2321509813516853 1.274e-09 deg/d
Q 2.885865923134523 1.0558e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2132  
   data-arc span      9537 days (26.11 yr)  
   first obs. used      1995-02-02  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47884  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:09:23  

Additional Information
 Earth MOID = 1.35934 au 
 Jupiter MOID = 2.10385 au 
 T_jup = 3.356 
[ 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 13.69   n/a E2021B10  
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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