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1546 Izsak (1941 SG1)
Classification: Main-belt Asteroid          SPK-ID: 2001546
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262968501728849 2.9255e-08  
a 3.171087066107009 1.3704e-08 au
q 2.770588758033719 9.4255e-08 au
i 16.12047010401202 3.8529e-06 deg
node 190.3134960394595 1.2032e-05 deg
peri 280.8538283116786 1.9287e-05 deg
M 251.7686257884151 1.5808e-05 deg
tp 2459620.599452980399
(2022-Feb-10.09945298)
9.1842e-05 TDB
period 2062.579401759539
5.65
1.337e-05
3.661e-08
d
yr
n .1745387351841545 1.1314e-09 deg/d
Q 3.571585374180299 1.5435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2969  
   data-arc span      31072 days (85.07 yr)  
   first obs. used      1935-08-27  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43034  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:34:18  

Additional Information
 Earth MOID = 1.84245 au 
 Jupiter MOID = 1.70173 au 
 T_jup = 3.129 
[ 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 10.7   n/a MPO448927  
diameter diameter 26.438 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.350 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2006) Minor Planet Bull. 33, 85-88.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.133   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1546 Izsak           Discovered 1941 Sept. 28 by G. Kulin at Budapest.
Named in memory of Imre Izsak (1929-1965), Hungarian-born astronomer and celestial mechanician, who made important contributions to the study of artificial-satellite motion. In his later years he worked at the Cincinnati Observatory and the Smithsonian Astrophysical Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5182Last Updated: 2006-03-21

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Alternate Designations
 1941 SG1 = 1935 QC = 1938 FH = 1978 BF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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