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20106 Morton (1995 QG)
Classification: Main-belt Asteroid          SPK-ID: 2020106
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588363822285349 4.3299e-08  
a 2.648114754088354 1.3776e-08 au
q 2.227497786822953 1.1342e-07 au
i 13.35681464750642 5.9929e-06 deg
node 323.0176941512962 2.0067e-05 deg
peri 104.2333348190811 2.7761e-05 deg
M 228.8344913554103 1.8752e-05 deg
tp 2459573.983299606815
(2021-Dec-25.48329961)
8.3354e-05 TDB
period 1573.996014591516
4.31
1.2282e-05
3.363e-08
d
yr
n .2287172246070949 1.7847e-09 deg/d
Q 3.068731721353754 1.5964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      9918 days (27.15 yr)  
   first obs. used      1993-04-20  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51271  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:39:17  

Additional Information
 Earth MOID = 1.28532 au 
 Jupiter MOID = 2.28023 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457037.5 (2015-Jan-15.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613700652412375 4.3501e-08  
q 2.217261822215827 1.1427e-07 au
tp 2456430.348579854630
(2013-May-17.84857985)
7.7091e-05 TDB
node 323.1379915724727 2.0111e-05 deg
peri 104.0533702571385 2.7489e-05 deg
i 13.34995574677953 5.99e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      9918 days (27.15 yr)  
   first obs. used      1993-04-20  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51271  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:39:17  

Additional Information
 Jupiter MOID = 2.28023 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.892378397364702E-15 -4.946645446528468E-15 9.36556581464239E-13 -1.51243988575131E-14 2.159054792172191E-13 -2.388370428588646E-15
q -4.946645446528468E-15 1.305844731211968E-14 -2.464545307804059E-12 4.064376150783156E-14 -5.578906715656348E-13 6.469284144289316E-15
tp 9.36556581464239E-13 -2.464545307804059E-12 5.942997779592544E-9 -2.274143390619998E-11 1.462076096111437E-9 -7.877431707964492E-12
node -1.51243988575131E-14 4.064376150783156E-14 -2.274143390619998E-11 4.044464880179844E-10 -3.979712257433875E-10 -1.668840693303773E-11
peri 2.159054792172191E-13 -5.578906715656348E-13 1.462076096111437E-9 -3.979712257433875E-10 7.556374506349956E-10 1.443711828615173E-11
i -2.388370428588646E-15 6.469284144289316E-15 -7.877431707964492E-12 -1.668840693303773E-11 1.443711828615173E-11 3.587989725012531E-11

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 15.0   n/a MPO384927  
diameter diameter 3.183 km 0.629 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 18.043 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.121   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20106 Morton           Discovered 1995 Aug. 20 by D. D. Balam at the National Research Council of Canada.
Donald C. Morton (b. 1933), was director of the Anglo-Australian Observatory during 1976-1986 and of the Herzberg Institute of Astrophysics in Ottawa during 1986-2000. With a rocket he made the first ultraviolet spectral observations of stars. He played a leading role in the development of the Gemini Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

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