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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1907989796279991 4.777e-08  
a 2.235392307203487 8.2544e-09 au
q 1.808881735920783 1.0804e-07 au
i 5.77020785221374 5.0131e-06 deg
node 160.7431028696572 3.8233e-05 deg
peri 190.2457113491759 3.969e-05 deg
M 3.33207946652686 1.3876e-05 deg
tp 2458989.200950676370
(2020-May-19.70095068)
4.7012e-05 TDB
period 1220.756526778331
3.34
6.7617e-06
1.851e-08
d
yr
n .2948990991267254 1.6334e-09 deg/d
Q 2.661902878486191 9.8294e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1269  
   data-arc span      10002 days (27.38 yr)  
   first obs. used      1992-03-30  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55237  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:27:32  

Additional Information
 Earth MOID = .803189 au 
 Jupiter MOID = 2.76624 au 
 T_jup = 3.608 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456461.5 (2013-Jun-18.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1903787315860798 4.7544e-08  
q 1.810059776238536 1.0749e-07 au
tp 2456546.891683878368
(2013-Sep-11.39168388)
3.9495e-05 TDB
node 160.8233396379279 3.8294e-05 deg
peri 190.1042597316138 3.9764e-05 deg
i 5.764342801880423 5.0093e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1269  
   data-arc span      10002 days (27.38 yr)  
   first obs. used      1992-03-30  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55237  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:27:32  

Additional Information
 Jupiter MOID = 2.76624 au 
 T_jup = 3.608 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.260415412742958E-15 -5.100724569357848E-15 5.005960923542365E-15 2.553630676519946E-14 -2.568242798317677E-14 2.977238443463729E-15
q -5.100724569357848E-15 1.155338143615517E-14 1.132822283610111E-13 -5.913186550903213E-14 8.963986400690138E-14 -6.566709872055839E-15
tp 5.005960923542365E-15 1.132822283610111E-13 1.559884915813347E-9 -1.349694813422693E-11 4.343597577410673E-10 8.514745577034901E-13
node 2.553630676519946E-14 -5.913186550903213E-14 -1.349694813422693E-11 1.466404242532867E-9 -1.462054860959118E-9 2.50274892902293E-11
peri -2.568242798317677E-14 8.963986400690138E-14 4.343597577410673E-10 -1.462054860959118E-9 1.581202356560215E-9 -2.468745342576011E-11
i 2.977238443463729E-15 -6.566709872055839E-15 8.514745577034901E-13 2.50274892902293E-11 -2.468745342576011E-11 2.509294531303396E-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 MPO324486  

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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