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469294 (1996 XW9)
Classification: Main-belt Asteroid          SPK-ID: 2469294
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2103089848355075 2.7882e-07  
a 2.246002650626568 2.0632e-08 au
q 1.773648113235435 6.3966e-07 au
i 3.992427300608239 1.6043e-05 deg
node 343.2077980718639 0.0001037 deg
peri 28.08509456513448 0.00010826 deg
M 24.76715494464734 3.3765e-05 deg
tp 2458915.916150994707
(2020-Mar-07.41615099)
0.00011435 TDB
period 1229.458357649848
3.37
1.6941e-05
4.638e-08
d
yr
n .2928118693569682 4.0348e-09 deg/d
Q 2.7183571880177 2.4972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      7777 days (21.29 yr)  
   first obs. used      1996-12-01  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57652  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:25:58  

Additional Information
 Earth MOID = .774527 au 
 Jupiter MOID = 2.7521 au 
 T_jup = 3.598 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457043.5 (2015-Jan-21.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2114438452912183 2.788e-07  
q 1.770807616812949 6.4003e-07 au
tp 2456457.363419916577
(2013-Jun-13.86341992)
8.6131e-05 TDB
node 343.3128833170294 0.00010359 deg
peri 28.01815276252524 0.00010806 deg
i 3.995003266426442 1.6054e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      7777 days (21.29 yr)  
   first obs. used      1996-12-01  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57652  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:25:58  

Additional Information
 Jupiter MOID = 2.7521 au 
 T_jup = 3.598 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.77295067055335E-14 -1.784222549386992E-13 -1.903928540843194E-11 -4.002194437250855E-13 -6.732252664742718E-12 -4.035665265375809E-13
q -1.784222549386992E-13 4.096416026111949E-13 4.374101522795072E-11 9.137284865764057E-13 1.547919396804825E-11 9.263319195611607E-13
tp -1.903928540843194E-11 4.374101522795072E-11 7.418505939660652E-9 9.246252415301132E-11 2.682892263470517E-9 9.827212235490216E-11
node -4.002194437250855E-13 9.137284865764057E-13 9.246252415301132E-11 1.072990404730781E-8 -1.06658948704489E-8 7.602738085744456E-10
peri -6.732252664742718E-12 1.547919396804825E-11 2.682892263470517E-9 -1.06658948704489E-8 1.167714347583524E-8 -7.215883993974866E-10
i -4.035665265375809E-13 9.263319195611607E-13 9.827212235490216E-11 7.602738085744456E-10 -7.215883993974866E-10 2.577326123295226E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.3   n/a MPO440883  

469294 (1996 XW9)          Discovered 1996-Dec-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22

Alternate Designations
 1996 XW9 = 2006 SL346 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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