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227331 (2005 UW)
Classification: Main-belt Asteroid          SPK-ID: 2227331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02173615543414977 7.3841e-08  
a 2.812714128174292 2e-08 au
q 2.751576536692467 2.0245e-07 au
i 4.643616320356893 6.3589e-06 deg
node 223.663465354493 6.1849e-05 deg
peri 173.944297603509 0.00014472 deg
M 81.66233728851901 0.00012804 deg
tp 2458809.653592972356
(2019-Nov-22.15359297)
0.0006137 TDB
period 1723.006115203778
4.72
1.8377e-05
5.031e-08
d
yr
n .2089371574618138 2.2285e-09 deg/d
Q 2.873851719656118 2.0435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      332  
   data-arc span      9269 days (25.38 yr)  
   first obs. used      1995-10-20  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53299  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:21  

Additional Information
 Earth MOID = 1.75659 au 
 Jupiter MOID = 2.20941 au 
 T_jup = 3.315 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457484.5 (2016-Apr-06.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02039109582136414 7.6637e-08  
q 2.754410007296442 2.0979e-07 au
tp 2457058.425367773451
(2015-Feb-04.92536777)
0.00060769 TDB
node 223.7370669292262 6.1995e-05 deg
peri 167.9763191981514 0.00014266 deg
i 4.637194949176004 6.3577e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      332  
   data-arc span      9269 days (25.38 yr)  
   first obs. used      1995-10-20  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53299  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:21  

Additional Information
 Jupiter MOID = 2.20941 au 
 T_jup = 3.315 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.873304484409919E-15 -1.601465123980022E-14 -2.506139901214455E-11 -7.669875360830783E-15 -5.389276384138738E-12 3.243999737095242E-15
q -1.601465123980022E-14 4.401135863992226E-14 6.794349820375496E-11 2.347079145493528E-14 1.462826275796874E-11 -8.514590954311952E-15
tp -2.506139901214455E-11 6.794349820375496E-11 3.692842238652075E-7 1.485842855903157E-10 7.810157911189931E-8 -3.604579843770198E-11
node -7.669875360830783E-15 2.347079145493528E-14 1.485842855903157E-10 3.843343635511506E-9 -3.799093590489265E-9 -1.718336060219999E-10
peri -5.389276384138738E-12 1.462826275796874E-11 7.810157911189931E-8 -3.799093590489265E-9 2.035147242256698E-8 1.636470414367387E-10
i 3.243999737095242E-15 -8.514590954311952E-15 -3.604579843770198E-11 -1.718336060219999E-10 1.636470414367387E-10 4.041985697350583E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.04   n/a MPCxxxxx  

227331 (2005 UW)          Discovered 2005-Oct-23 by Young, J. W. at Wrightwood
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2005 UW = 2003 KH14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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