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8793 Thomasmuller (1979 QX)
Classification: Main-belt Asteroid          SPK-ID: 2008793
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .144675127574841 4.6085e-08  
a 2.532606896666507 1.0708e-08 au
q 2.166201670794358 1.1893e-07 au
i 2.378868419768304 4.6601e-06 deg
node 288.4640314351929 9.2224e-05 deg
peri 145.1128081645859 9.2992e-05 deg
M 308.1887207309587 1.297e-05 deg
tp 2459212.371196624783
(2020-Dec-28.87119662)
5.3493e-05 TDB
period 1472.143360692846
4.03
9.3364e-06
2.556e-08
d
yr
n .2445414010701854 1.5509e-09 deg/d
Q 2.899012122538656 1.2257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1660  
   data-arc span      14958 days (40.95 yr)  
   first obs. used      1979-08-22  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4784  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:01:52  

Additional Information
 Earth MOID = 1.18164 au 
 Jupiter MOID = 2.35275 au 
 T_jup = 3.434 
[ 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 13.7   n/a MPO344372  
diameter diameter 5.145 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.221   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8793 Thomasmüller           Discovered 1979 Aug. 22 by C.-I. Lagerkvist at the European Southern Observatory.
Named in honor of Thomas G. Müller for his contribution to the study of minor planets in the thermal infrared. His observational work includes mid- to far-infrared photometry, spectroscopy and polarimetry with the Infrared Space Observatory. He has developed and applied various thermophysical models and techniques, in order to derive physical properties of minor planets. Because of the great accuracy he achieved, future telescope projects in the infrared will also benefit from these efforts, since minor planets are well suited as calibration targets, Name proposed and citation prepared by J. S. V. Lagerros.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981208/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1979 QX = 1989 AC1 = 1991 PS4 = 1991 PT31 = 1996 XC6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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