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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1584119664437102 4.0715e-08  
a 2.646820273655376 1.3184e-08 au
q 2.227532269282549 1.0771e-07 au
i 13.36704735578811 5.6745e-06 deg
node 322.9981724079373 1.7986e-05 deg
peri 104.5029009865582 2.5063e-05 deg
M 274.258601007918 1.837e-05 deg
tp 2459575.104655375771
(2021-Dec-26.60465538)
8.1396e-05 TDB
period 1572.842028711609
4.31
1.1752e-05
3.218e-08
d
yr
n .2288850332254241 1.7102e-09 deg/d
Q 3.066108278028203 1.5273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      10005 days (27.39 yr)  
   first obs. used      1993-04-20  
   last obs. used      2020-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5044  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:12  

Additional Information
 Earth MOID = 1.28487 au 
 Jupiter MOID = 2.28039 au 
 T_jup = 3.336 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457521.5 (2016-May-13.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1610168586286888 4.0892e-08  
q 2.218923452910519 1.0862e-07 au
tp 2458000.693516114816
(2017-Sep-04.19351611)
7.5359e-05 TDB
node 323.1371985980045 1.8049e-05 deg
peri 104.0036912173468 2.4822e-05 deg
i 13.34957427193404 5.668e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      10005 days (27.39 yr)  
   first obs. used      1993-04-20  
   last obs. used      2020-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5044  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:12  

Additional Information
 Jupiter MOID = 2.28039 au 
 T_jup = 3.336 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.672177783665161E-15 -4.41982983431571E-15 1.311901773102937E-12 -4.255483373181779E-15 3.159318619906048E-13 -1.591801242667926E-16
q -4.41982983431571E-15 1.179874034022457E-14 -3.236939458563998E-12 1.241243610107288E-14 -7.941827210166477E-13 5.946058391259436E-16
tp 1.311901773102937E-12 -3.236939458563998E-12 5.678994379784883E-9 -2.217338374531561E-12 1.298660463748525E-9 -1.86460981163207E-12
node -4.255483373181779E-15 1.241243610107288E-14 -2.217338374531561E-12 3.257563839235035E-10 -3.170473474043737E-10 -3.294327655322095E-11
peri 3.159318619906048E-13 -7.941827210166477E-13 1.298660463748525E-9 -3.170473474043737E-10 6.161213828979936E-10 3.164808454808911E-11
i -1.591801242667926E-16 5.946058391259436E-16 -1.86460981163207E-12 -3.294327655322095E-11 3.164808454808911E-11 3.212568397896224E-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 15.01   n/a E2021B10  
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. 2020-October); 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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