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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1060256728882597 3.9877e-08  
a 2.524657314976959 2.0886e-08 au
q 2.25697882434426 1.0413e-07 au
i 6.856013741837968 4.2558e-06 deg
node 136.0227217110078 5.2159e-05 deg
peri 327.3821884435235 5.9679e-05 deg
M 234.0705205118506 3.2011e-05 deg
tp 2459713.039086410448
(2022-May-13.53908641)
0.00013251 TDB
period 1465.217452321203
4.01
1.8182e-05
4.978e-08
d
yr
n .2456973191451458 3.049e-09 deg/d
Q 2.792335805609659 2.3101e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64105  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:28:10  

Additional Information
 Earth MOID = 1.27698 au 
 Jupiter MOID = 2.31577 au 
 T_jup = 3.436 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457436.5 (2016-Feb-18.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1071393368749412 4.036e-08  
q 2.252945417086631 1.0568e-07 au
tp 2456779.242053620372
(2014-May-01.74205362)
0.00012102 TDB
node 136.0955089340343 5.2292e-05 deg
peri 326.3491269043607 5.9542e-05 deg
i 6.848063683116768 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64105  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:28:10  

Additional Information
 Jupiter MOID = 2.31577 au 
 T_jup = 3.436 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.628889295924175E-15 -4.201219017811882E-15 -1.554032364760061E-12 -1.255631100091483E-14 -4.044990817462122E-13 -1.785176134378798E-15
q -4.201219017811882E-15 1.116869142031849E-14 4.232052495206395E-12 3.537666456742833E-14 1.128029302525098E-12 5.174730884164415E-15
tp -1.554032364760061E-12 4.232052495206395E-12 1.464685193582908E-8 1.615150070025001E-10 3.500234918890311E-9 2.16501193072101E-12
node -1.255631100091483E-14 3.537666456742833E-14 1.615150070025001E-10 2.734418038407478E-9 -2.673910400355914E-9 3.416678832809713E-11
peri -4.044990817462122E-13 1.128029302525098E-12 3.500234918890311E-9 -2.673910400355914E-9 3.54528674045803E-9 -3.329655501705766E-11
i -1.785176134378798E-15 5.174730884164415E-15 2.16501193072101E-12 3.416678832809713E-11 -3.329655501705766E-11 1.806550758901537E-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 16.73   n/a E2021B55  

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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