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382820 (2003 WB9)
Classification: Mars-crossing Asteroid          SPK-ID: 2382820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2945675069839234 4.3775e-08  
a 2.192632745386069 6.9141e-09 au
q 1.54675438384638 9.7204e-08 au
i 7.017666858971266 4.862e-06 deg
node 271.2545601238368 3.4371e-05 deg
peri 73.37469822077409 3.6946e-05 deg
M 193.9958818969181 8.6058e-06 deg
tp 2459943.344226759526
(2022-Dec-29.84422676)
2.8621e-05 TDB
period 1185.897819180516
3.25
5.6093e-06
1.536e-08
d
yr
n .3035674694542982 1.4359e-09 deg/d
Q 2.838511106925759 8.9508e-09 au
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      6321 days (17.31 yr)  
   first obs. used      2003-10-19  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56329  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 10:55:37  

Additional Information
 Earth MOID = .557272 au 
 Jupiter MOID = 2.62746 au 
 T_jup = 3.605 
[ 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 18.16   n/a MPCxxxxx  

382820 (2003 WB9)          Discovered 2003-Nov-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-01-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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