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91024 Szechenyi (1998 DA33)
Classification: Main-belt Asteroid          SPK-ID: 2091024
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06375703507685954 4.0922e-08  
a 2.661632743884242 1.1892e-08 au
q 2.491934931670696 1.0822e-07 au
i 4.638201398144433 4.61e-06 deg
node 5.531909159407159 4.9631e-05 deg
peri 204.5160676844697 6.1877e-05 deg
M 27.93492919176431 3.5748e-05 deg
tp 2458877.426175351958
(2020-Jan-28.92617535)
0.00015755 TDB
period 1586.063689982693
4.34
1.0629e-05
2.91e-08
d
yr
n .2269770137691812 1.5212e-09 deg/d
Q 2.831330556097787 1.265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      13739 days (37.62 yr)  
   first obs. used      1982-11-05  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52183  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:37:22  

Additional Information
 Earth MOID = 1.48754 au 
 Jupiter MOID = 2.1338 au 
 T_jup = 3.378 
[ 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 15.2   n/a MPO436408  
diameter diameter 2.997 km 0.830 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.197   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91024 Széchenyi           Discovered 1998 Feb. 28 by K. Sárneczky and L. Kiss at Piszkéstető.
Count István Széchenyi (1791-1860), known as "The Greatest Hungarian", was a writer, reformer and patriot. In addition to promoting the first permanent bridge between Buda and Pest, he became famous for donating a year's income toward the foundation of the Hungarian Academy of Sciences.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

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Alternate Designations
 1998 DA33 = 1995 SJ49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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