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JPL Small-Body Database Browser
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39828 (1998 BH4)
Classification: Main-belt Asteroid          SPK-ID: 2039828
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2197456730804709 3.9348e-08  
a 2.363914903345699 7.763e-09 au
q 1.844454831805042 9.3428e-08 au
i 2.237154164895861 4.3715e-06 deg
node 333.7517445659201 0.00010219 deg
peri 205.2044306115186 0.00010257 deg
M 24.04764771690157 9.7935e-06 deg
tp 2458911.821919228463
(2020-Mar-03.32191923)
3.5966e-05 TDB
period 1327.535626501871
3.63
6.5394e-06
1.79e-08
d
yr
n .271179162964251 1.3358e-09 deg/d
Q 2.883374974886356 9.4689e-09 au
  Orbit Determination Parameters
   # obs. used (total)      977  
   data-arc span      8048 days (22.03 yr)  
   first obs. used      1998-01-21  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56611  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:36:32  

Additional Information
 Earth MOID = .848442 au 
 Jupiter MOID = 2.08216 au 
 T_jup = 3.515 
[ 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 15.3   n/a MPO417092  
rotation period rot_per 14.2 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Galad, A.; Kornos, L.; Vilagi, J. (2010) Minor Planet Bull. 37, 9-15.]

39828 (1998 BH4)          Discovered 1998-Jan-21 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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