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38442 Szilard (1999 SU6)
Classification: Main-belt Asteroid          SPK-ID: 2038442
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0768992158745096 5.9442e-08  
a 2.900908964265652 2.8483e-08 AU
q 2.677831339590287 1.8348e-07 AU
i .8952882347975571 5.9822e-06 deg
node 322.1090290616953 0.00039522 deg
peri 357.832994911306 0.00039707 deg
M 43.18406329088663 4.5598e-05 deg
tp 2456584.018603958154
(2013-Oct-18.51860396)
0.00022894 JED
period 1804.677388741958
4.94
2.658e-05
7.277e-08
d
yr
n .1994816371312528 2.938e-09 deg/d
Q 3.123986588941016 3.0674e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      6936 days (18.99 yr)  
   first obs. used      1994-10-31  
   last obs. used      2013-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52448  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 04:42:27  

Additional Information
 Earth MOID = 1.66373 AU 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO267835  

38442 Szilárd           Discovered 1999 Sept. 24 by K. Sárneczky and G. Szabó at Piszkesteto.
Hungarian-American physicist Leó Szilárd (1898-1964) conceived the nuclear chain reaction and worked with Fermi on the first nuclear reactor. After World War II he changed his research field to molecular biology because of his horror of nuclear weapons. He was a founder of the Council for a Livable World.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

[ show close-approach data ]
Alternate Designations
 1999 SU6 = 2000 YR54 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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