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180418 (2004 BW57)
Classification: Main-belt Asteroid          SPK-ID: 2180418
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08293974039132379 3.1044e-08  
a 2.629381488919438 1.3136e-08 au
q 2.411301270838707 8.32e-08 au
i 10.54562139482731 3.6403e-06 deg
node 145.0376388744755 1.7259e-05 deg
peri 346.4896459397734 2.9047e-05 deg
M 358.642440751709 2.1871e-05 deg
tp 2459206.372663550737
(2020-Dec-22.87266355)
9.4602e-05 TDB
period 1557.323469253242
4.26
1.167e-05
3.195e-08
d
yr
n .2311658477558455 1.7323e-09 deg/d
Q 2.847461707000169 1.4226e-08 au
  Orbit Determination Parameters
   # obs. used (total)      682  
   data-arc span      7691 days (21.06 yr)  
   first obs. used      2000-03-29  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50109  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:08:37  

Additional Information
 Earth MOID = 1.42642 au 
 Jupiter MOID = 2.17544 au 
 T_jup = 3.372 
[ 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 16.08   n/a MPCxxxxx  

180418 (2004 BW57)          Discovered 2004-Jan-23 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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