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243073 Freistetter (2007 HT3)
Classification: Main-belt Asteroid          SPK-ID: 2243073
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1967855443591502 5.422e-08  
a 3.17489813814674 5.9963e-08 au
q 2.550124079746681 1.9217e-07 au
i 30.54633552817441 6.9089e-06 deg
node 55.46801769244587 1.2669e-05 deg
peri 210.5785455071906 2.3956e-05 deg
M 67.82363196557316 2.7101e-05 deg
tp 2458611.211420614126
(2019-May-07.71142061)
0.00014784 TDB
period 2066.298788747421
5.66
5.8538e-05
1.603e-07
d
yr
n .1742245613076268 4.9357e-09 deg/d
Q 3.799672196546798 7.1762e-08 au
  Orbit Determination Parameters
   # obs. used (total)      339  
   data-arc span      5795 days (15.87 yr)  
   first obs. used      2003-10-18  
   last obs. used      2019-08-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5713  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 02:49:18  

Additional Information
 Earth MOID = 1.56629 au 
 Jupiter MOID = 1.33841 au 
 T_jup = 2.958 
[ 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 14.9   n/a MPO454782  
diameter diameter 7.181 km 1.853 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.031   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243073 Freistetter           Discovered 2007 Apr. 16 by A. Knöfel at Drebach.
Florian Freistetter (b. 1977) is an astronomer and science writer. He has written popular science books and articles, and he established the German-speaking science blog Astrodicticum Simplex.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20130127/MPCPages.arcLast Updated: 2013-01-31

[ show close-approach data ]
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