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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1057903234048765 4.2256e-08  
a 2.52598760471647 2.1806e-08 au
q 2.258762559096805 1.0832e-07 au
i 6.851643905680988 4.4219e-06 deg
node 136.0303566561393 6.1403e-05 deg
peri 326.9546154929293 7.0288e-05 deg
M 185.4431231635369 3.6075e-05 deg
tp 2459711.516553220587
(2022-May-12.01655322)
0.00014835 TDB
period 1466.37568108656
4.01
1.8988e-05
5.199e-08
d
yr
n .2455032531180864 3.179e-09 deg/d
Q 2.793212650336134 2.4113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      6907 days (18.91 yr)  
   first obs. used      2000-07-31  
   last obs. used      2019-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64517  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 13:12:10  

Additional Information
 Earth MOID = 1.27899 au 
 Jupiter MOID = 2.31663 au 
 T_jup = 3.436 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457252.5 (2015-Aug-18.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1072392943806278 4.2686e-08  
q 2.252515759983872 1.0962e-07 au
tp 2456779.302923943778
(2014-May-01.80292394)
0.00014293 TDB
node 136.0964452388259 6.1508e-05 deg
peri 326.3411543448539 7.0056e-05 deg
i 6.848036804313377 4.4201e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      6907 days (18.91 yr)  
   first obs. used      2000-07-31  
   last obs. used      2019-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64517  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 13:12:10  

Additional Information
 Jupiter MOID = 2.31663 au 
 T_jup = 3.436 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.822088338388579E-15 -4.606130083666538E-15 -2.610832623909446E-12 -4.306082590142122E-14 -6.493730058368176E-13 -2.523817875585242E-15
q -4.606130083666538E-15 1.201697612833483E-14 6.441332890313869E-12 1.090721037550718E-13 1.630043378638499E-12 7.086493459293763E-15
tp -2.610832623909446E-12 6.441332890313869E-12 2.042981056349939E-8 2.853675053280844E-10 4.883224642913735E-9 4.580508422723964E-12
node -4.306082590142122E-14 1.090721037550718E-13 2.853675053280844E-10 3.783232216624431E-9 -3.683252327919541E-9 7.333528810838228E-11
peri -6.493730058368176E-13 1.630043378638499E-12 4.883224642913735E-9 -3.683252327919541E-9 4.907816021133824E-9 -7.156678415332283E-11
i -2.523817875585242E-15 7.086493459293763E-15 4.580508422723964E-12 7.333528810838228E-11 -7.156678415332283E-11 1.953686470890602E-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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