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JPL Small-Body Database Browser
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154105 (2002 EW4)
Classification: Main-belt Asteroid          SPK-ID: 2154105
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09966470884020841 5.1955e-08  
a 2.974104272050245 3.4465e-08 au
q 2.677691035715938 1.5641e-07 au
i 9.605307549764232 6.9599e-06 deg
node 165.4056788909502 3.3569e-05 deg
peri 267.2280313582169 6.046e-05 deg
M 282.6676383840411 4.4334e-05 deg
tp 2459402.931053347514
(2021-Jul-07.43105335)
0.00023035 TDB
period 1873.409477969534
5.13
3.2565e-05
8.916e-08
d
yr
n .1921630077318603 3.3403e-09 deg/d
Q 3.270517508384553 3.79e-08 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      5917 days (16.20 yr)  
   first obs. used      2002-02-09  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62685  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:43:43  

Additional Information
 Earth MOID = 1.71394 au 
 Jupiter MOID = 2.01094 au 
 T_jup = 3.233 
[ 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 15.7   n/a MPO449829  

154105 (2002 EW4)          Discovered 2002-Mar-10 by Asiago-DLR Asteroid Survey at Cima Ekar
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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