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47296 (1999 WD2)
Classification: Main-belt Asteroid          SPK-ID: 2047296
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02199898014775478 5.7217e-08  
a 2.537517842730954 1.297e-08 au
q 2.481695038084142 1.4607e-07 au
i 4.437660111911747 4.7384e-06 deg
node 69.55359069205954 6.1332e-05 deg
peri 156.409490034753 0.00013959 deg
M 220.9422915833742 0.0001285 deg
tp 2459570.801680566487
(2021-Dec-22.30168057)
0.00052801 TDB
period 1476.427357689642
4.04
1.132e-05
3.099e-08
d
yr
n .2438318405067615 1.8695e-09 deg/d
Q 2.593340647377766 1.3256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      917  
   data-arc span      10077 days (27.59 yr)  
   first obs. used      1993-03-18  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:42:59  

Additional Information
 Earth MOID = 1.47122 au 
 Jupiter MOID = 2.37255 au 
 T_jup = 3.443 
[ 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 15.5   n/a MPO502471  

47296 (1999 WD2)          Discovered 1999-Nov-20 by Farra d'Isonzo at Farra d'Isonzo
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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