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39830 (1998 BS6)
Classification: Main-belt Asteroid          SPK-ID: 2039830
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1350515936191826 3.2847e-08  
a 2.24986717146833 7.3479e-09 au
q 1.946019024530049 7.6672e-08 au
i 3.95276666506799 3.4601e-06 deg
node 144.2760275362733 4.6884e-05 deg
peri 154.0125321418786 4.9063e-05 deg
M 57.06407548977723 1.2817e-05 deg
tp 2458805.113735510086
(2019-Nov-17.61373551)
4.3988e-05 TDB
period 1232.632871253122
3.37
6.0386e-06
1.653e-08
d
yr
n .2920577638287513 1.4308e-09 deg/d
Q 2.55371531840661 8.3403e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1626  
   data-arc span      8942 days (24.48 yr)  
   first obs. used      1995-03-31  
   last obs. used      2019-09-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:36:32  

Additional Information
 Earth MOID = .931251 au 
 Jupiter MOID = 2.6309 au 
 T_jup = 3.613 
[ 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 14.9   n/a MPO436049  
rotation period rot_per 12.118 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

39830 (1998 BS6)          Discovered 1998-Jan-24 by Kobayashi, T. at Oizumi
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

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