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45300 Thewrewk (2000 AF45)
Classification: Main-belt Asteroid          SPK-ID: 2045300
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07913542537762476 3.8144e-08  
a 3.100284838774267 1.8517e-08 au
q 2.854942479266065 1.1552e-07 au
i 10.24917362110429 3.8894e-06 deg
node 263.3846889163322 2.4912e-05 deg
peri 64.736575826932 3.7477e-05 deg
M 81.77246591711796 2.7705e-05 deg
tp 2458547.596772798865
(2019-Mar-05.09677280)
0.00015355 TDB
period 1993.88828456838
5.46
1.7863e-05
4.891e-08
d
yr
n .1805517404290932 1.6176e-09 deg/d
Q 3.34562719828247 1.9982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1683  
   data-arc span      7714 days (21.12 yr)  
   first obs. used      1998-12-14  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48572  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:00:33  

Additional Information
 Earth MOID = 1.8615 au 
 Jupiter MOID = 1.92155 au 
 T_jup = 3.193 
[ 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 13.1   n/a MPO502457  
diameter diameter 13.230 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

45300 Thewrewk           Discovered 2000 Jan. 1 by K. Sárneczky and L. Kiss at Piszkéstető.
Aurél Ponori Thewrewk (b. 1921) was director of Urania Public Observatory and Budapest Planetarium. Currently honorary president of the Hungarian Astronomical Association, he is a recognized expert on the history of astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050125/MPCPages.arcLast Updated: 2005-06-01

[ show close-approach data ]
Alternate Designations
 2000 AF45 = 1998 XX37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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