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70943 (1999 WM9)
Classification: Main-belt Asteroid          SPK-ID: 2070943
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03449685107215512 3.9454e-08  
a 2.731140880116016 1.6239e-08 au
q 2.63692511991758 1.0978e-07 au
i 5.749876130620008 4.555e-06 deg
node 206.7626144994687 3.6357e-05 deg
peri 181.3789734647285 6.881e-05 deg
M 224.7194769953067 5.9583e-05 deg
tp 2459620.008620557028
(2022-Feb-09.50862056)
0.00027517 TDB
period 1648.597288412262
4.51
1.4703e-05
4.025e-08
d
yr
n .218367458523913 1.9475e-09 deg/d
Q 2.825356640314453 1.6799e-08 au
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      9395 days (25.72 yr)  
   first obs. used      1994-09-27  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:37:34  

Additional Information
 Earth MOID = 1.64079 au 
 Jupiter MOID = 2.32085 au 
 T_jup = 3.346 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO253803  

70943 (1999 WM9)          Discovered 1999-Nov-29 by Farra d'Isonzo at Farra d'Isonzo
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 WM9 = 2002 LW10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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