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43791 (1990 UK5)
Classification: Main-belt Asteroid          SPK-ID: 2043791
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2323724705725667 2.9996e-08  
a 2.597347080710576 9.171e-09 au
q 1.993795122631415 8.1166e-08 au
i 6.027612851355873 3.1048e-06 deg
node 112.2689036382457 3.9731e-05 deg
peri 302.702160329416 4.1026e-05 deg
M 106.061102789807 1.0626e-05 deg
tp 2458946.049528041180
(2020-Apr-06.54952804)
4.3799e-05 TDB
period 1528.950441205104
4.19
8.0978e-06
2.217e-08
d
yr
n .235455636950699 1.2471e-09 deg/d
Q 3.200899038789736 1.1302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1445  
   data-arc span      11217 days (30.71 yr)  
   first obs. used      1990-10-16  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52838  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:06:44  

Additional Information
 Earth MOID = 1.01284 au 
 Jupiter MOID = 2.1811 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457606.5 (2016-Aug-06.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2304275157996863 3.0229e-08  
q 1.999458741305123 8.1738e-08 au
tp 2457412.155449179671
(2016-Jan-24.65544918)
4.0856e-05 TDB
node 112.502951448208 3.9834e-05 deg
peri 301.7843346338984 4.1153e-05 deg
i 6.019264429386442 3.1042e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1445  
   data-arc span      11217 days (30.71 yr)  
   first obs. used      1990-10-16  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52838  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:06:44  

Additional Information
 Jupiter MOID = 2.1811 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.1381263705974E-16 -2.463227837802516E-15 -7.048470831413884E-13 -5.213107194520671E-15 -1.737993676852835E-13 -2.648443270906392E-15
q -2.463227837802516E-15 6.681066567405785E-15 1.951334672779651E-12 1.535501873740057E-14 4.816441676337711E-13 7.481481698094939E-15
tp -7.048470831413884E-13 1.951334672779651E-12 1.669186639792672E-9 2.472054211579838E-12 4.44673522625966E-10 4.052738359150256E-12
node -5.213107194520671E-15 1.535501873740057E-14 2.472054211579838E-12 1.586740054642095E-9 -1.577450926740464E-9 4.966637451518748E-11
peri -1.737993676852835E-13 4.816441676337711E-13 4.44673522625966E-10 -1.577450926740464E-9 1.693605793310191E-9 -4.837202415872706E-11
i -2.648443270906392E-15 7.481481698094939E-15 4.052738359150256E-12 4.966637451518748E-11 -4.837202415872706E-11 9.636022138200373E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.84   n/a MPCxxxxx  

43791 (1990 UK5)          Discovered 1990-Oct-16 by Elst, E. W. at La Silla
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 UK5 = 1998 QR31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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