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180417 (2004 BH56)
Classification: Main-belt Asteroid          SPK-ID: 2180417
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1821740081736431 4.3507e-08  
a 2.429858517941746 1.1598e-08 au
q 1.98720145243343 1.0883e-07 au
i 4.236611559679179 4.7022e-06 deg
node 165.825943142193 7.3334e-05 deg
peri 340.6732477995187 7.4935e-05 deg
M 159.6048929975345 1.7167e-05 deg
tp 2458587.142602084013
(2019-Apr-13.64260208)
6.3842e-05 TDB
period 1383.470513358047
3.79
9.905e-06
2.712e-08
d
yr
n .2602151592853145 1.863e-09 deg/d
Q 2.872515583450062 1.3711e-08 au
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      5606 days (15.35 yr)  
   first obs. used      2003-12-21  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52196  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 18:50:54  

Additional Information
 Earth MOID = .999362 au 
 Jupiter MOID = 2.1372 au 
 T_jup = 3.482 
[ 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 16.3   n/a MPO422702  
rotation period rot_per 53.4709 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

180417 (2004 BH56)          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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