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19228 Uemuraikuo (1993 SN1)
Classification: Main-belt Asteroid          SPK-ID: 2019228
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1908247477867198 3.7423e-08  
a 2.23561428570488 5.8666e-09 au
q 1.809003753486859 8.1967e-08 au
i 5.770126769848695 3.3848e-06 deg
node 160.7414980294822 3.6983e-05 deg
peri 190.2827284982915 3.8275e-05 deg
M 62.279549231587 1.1341e-05 deg
tp 2458989.279191410723
(2020-May-19.77919141)
3.8065e-05 TDB
period 1220.938366290777
3.34
4.8059e-06
1.316e-08
d
yr
n .2948551785571975 1.1606e-09 deg/d
Q 2.662224817922902 6.9861e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1730  
   data-arc span      10556 days (28.90 yr)  
   first obs. used      1992-03-30  
   last obs. used      2021-02-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5012  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:49:17  

Additional Information
 Earth MOID = .801564 au 
 Jupiter MOID = 2.7666 au 
 T_jup = 3.608 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457336.5 (2015-Nov-10.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1913106342983391 3.7414e-08  
q 1.807661613449765 8.194e-08 au
tp 2457769.117906892757
(2017-Jan-15.61790689)
3.5982e-05 TDB
node 160.7933182151077 3.6989e-05 deg
peri 190.4166431255326 3.8276e-05 deg
i 5.770089292432285 3.3852e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1730  
   data-arc span      10556 days (28.90 yr)  
   first obs. used      1992-03-30  
   last obs. used      2021-02-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5012  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:49:17  

Additional Information
 Jupiter MOID = 2.7666 au 
 T_jup = 3.608 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.39982665987176E-15 -3.061339348774522E-15 5.494563873243307E-13 2.600329117649506E-15 1.003833657850313E-13 -5.946636450039698E-16
q -3.061339348774522E-15 6.714239212185527E-15 -1.167984784328437E-12 -5.839945466685038E-15 -2.123801101717998E-13 1.260883243422646E-15
tp 5.494563873243307E-13 -1.167984784328437E-12 1.294677432328918E-9 -9.883977470905787E-12 3.63354387318636E-10 -2.088410876023307E-12
node 2.600329117649506E-15 -5.839945466685038E-15 -9.883977470905787E-12 1.368151472910864E-9 -1.363869032171627E-9 1.423726697741009E-11
peri 1.003833657850313E-13 -2.123801101717998E-13 3.63354387318636E-10 -1.363869032171627E-9 1.465032489117859E-9 -1.4773178550455E-11
i -5.946636450039698E-16 1.260883243422646E-15 -2.088410876023307E-12 1.423726697741009E-11 -1.4773178550455E-11 1.145989885882593E-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 15.12   n/a MPCxxxxx  

19228 Uemuraikuo           Discovered 1993 Sept. 16 by K. Endate and K. Watanabe at Kitami.
Ikuo Uemura (b. 1940) is a passionate and leading member of his local astronomical club Pleiades. Fascinated with cameras and photography since his youth, he diligently adds new images to his wide-ranging portfolio of astronomical objects.
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 ]
Alternate Designations
 1993 SN1 = 1999 JD73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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