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249118 (2007 WW9)
Classification: Main-belt Asteroid          SPK-ID: 2249118
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181790423746862 1.7126e-07  
a 2.461998850259208 6.5424e-08 au
q 2.0144310360063 3.8783e-07 au
i 4.015376320534217 1.5793e-05 deg
node 34.48389492704354 0.00012945 deg
peri 286.1454278768276 0.00015523 deg
M 145.5623717766974 0.00012592 deg
tp 2458429.972190754788
(2018-Nov-07.47219075)
0.00047262 TDB
period 1411.010337502323
3.86
5.6243e-05
1.54e-07
d
yr
n .2551363306361371 1.017e-08 deg/d
Q 2.909566664512117 7.7317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      4458 days (12.21 yr)  
   first obs. used      2003-09-29  
   last obs. used      2015-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69822  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 18:48:19  

Additional Information
 Earth MOID = 1.0063 au 
 Jupiter MOID = 2.41063 au 
 T_jup = 3.463 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.9   n/a MPO254459  

249118 (2007 WW9)          Discovered 2007-Nov-17 by Healy, D. at Junk Bond
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2007 WW9 = 2003 ST427 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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