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JPL Small-Body Database Browser
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390821 (2004 MW4)
Classification: Main-belt Asteroid          SPK-ID: 2390821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2383887730678494 6.3221e-08  
a 2.300179230898591 1.7164e-08 au
q 1.751842326208527 1.4561e-07 au
i 6.804169531321205 6.5985e-06 deg
node 54.03407659335123 5.629e-05 deg
peri 226.2244849148053 5.8106e-05 deg
M 91.30941641971906 1.2339e-05 deg
tp 2458277.312905791090
(2018-Jun-07.81290579)
4.4368e-05 TDB
period 1274.209807457288
3.49
1.4262e-05
3.905e-08
d
yr
n .2825280404318874 3.1624e-09 deg/d
Q 2.848516135588655 2.1256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      5143 days (14.08 yr)  
   first obs. used      2004-06-22  
   last obs. used      2018-07-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53223  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:37:51  

Additional Information
 Earth MOID = .743307 au 
 Jupiter MOID = 2.31018 au 
 T_jup = 3.544 
[ 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 17.3   n/a MPO455777  

390821 (2004 MW4)          Discovered 2004-Jun-22 by Broughton, J. at Reedy Creek
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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