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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08293973653026729 3.1352e-08  
a 2.629381493589956 1.4612e-08 au
q 2.411301285274044 8.4988e-08 au
i 10.54562162190913 3.6612e-06 deg
node 145.0376424738264 1.9449e-05 deg
peri 346.4896457544092 3.1002e-05 deg
M 358.6424362231895 2.3507e-05 deg
tp 2459206.372683156300
(2020-Dec-22.87268316)
0.00010169 TDB
period 1557.323473402606
4.26
1.2981e-05
3.554e-08
d
yr
n .2311658471399225 1.9269e-09 deg/d
Q 2.847461701905868 1.5824e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      7601 days (20.81 yr)  
   first obs. used      2000-03-29  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52383  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:43:26  

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 | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO502981  

180418 (2004 BW57)          Discovered 2004-Jan-23 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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