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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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1008915604738839 4.3113e-08  
a 2.621380058198576 1.0994e-08 au
q 2.3569049335318 1.1024e-07 au
i 13.77628699082552 4.3654e-06 deg
node 199.6349866470601 1.3477e-05 deg
peri 33.31080764392295 2.2524e-05 deg
M 165.6970714643848 1.7506e-05 deg
tp 2458286.980665653403
(2018-Jun-17.48066565)
7.4902e-05 TDB
period 1550.220279058984
4.24
9.7526e-06
2.67e-08
d
yr
n .2322250617302772 1.461e-09 deg/d
Q 2.88585518286535 1.2104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1799  
   data-arc span      9117 days (24.96 yr)  
   first obs. used      1995-02-02  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:45:44  

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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