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269487 (2009 UW17)
Classification: Main-belt Asteroid          SPK-ID: 2269487
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1057903215149846 4.0091e-08  
a 2.525987604085281 2.0659e-08 au
q 2.258762563306234 1.0477e-07 au
i 6.851646091528822 4.2522e-06 deg
node 136.0304161916953 5.2205e-05 deg
peri 326.9545584242627 5.9706e-05 deg
M 185.4431213629116 3.1827e-05 deg
tp 2459711.516560288512
(2022-May-12.01656029)
0.00013274 TDB
period 1466.375680536938
4.01
1.799e-05
4.925e-08
d
yr
n .2455032532101051 3.0118e-09 deg/d
Q 2.793212644864329 2.2845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      305  
   data-arc span      7271 days (19.91 yr)  
   first obs. used      2000-07-31  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .641  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:06:33  

Additional Information
 Earth MOID = 1.27899 au 
 Jupiter MOID = 2.31663 au 
 T_jup = 3.436 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457436.5 (2016-Feb-18.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1071393370915961 4.0359e-08  
q 2.252945415804856 1.0568e-07 au
tp 2456779.242053708539
(2014-May-01.74205371)
0.00012102 TDB
node 136.0955089665088 5.2292e-05 deg
peri 326.3491268527339 5.9542e-05 deg
i 6.848063686405581 4.2504e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      305  
   data-arc span      7271 days (19.91 yr)  
   first obs. used      2000-07-31  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .641  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:06:33  

Additional Information
 Jupiter MOID = 2.31663 au 
 T_jup = 3.436 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.628889209804097E-15 -4.201218758044436E-15 -1.55403235309421E-12 -1.255630656631894E-14 -4.044991017786112E-13 -1.785176445253363E-15
q -4.201218758044436E-15 1.11686913058065E-14 4.232051752673292E-12 3.53766503480009E-14 1.128029307066706E-12 5.174732406798271E-15
tp -1.55403235309421E-12 4.232051752673292E-12 1.464685031056057E-8 1.615149750998989E-10 3.500234501880319E-9 2.165011285062738E-12
node -1.255630656631894E-14 3.53766503480009E-14 1.615149750998989E-10 2.734418045071375E-9 -2.673910414556079E-9 3.416678788602352E-11
peri -4.044991017786112E-13 1.128029307066706E-12 3.500234501880319E-9 -2.673910414556079E-9 3.545286669413055E-9 -3.329655458496605E-11
i -1.785176445253363E-15 5.174732406798271E-15 2.165011285062738E-12 3.416678788602352E-11 -3.329655458496605E-11 1.806550740102872E-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 16.5   n/a MPO437237  

269487 (2009 UW17)          Discovered 2009-Oct-20 by Mayhill at Mayhill
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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