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91228 (1999 BG13)
Classification: Main-belt Asteroid          SPK-ID: 2091228
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07982467244910459 3.0782e-08  
a 2.205277530172652 7.6124e-09 au
q 2.029241973667249 6.6278e-08 au
i 4.300147341236975 2.9605e-06 deg
node 292.6071971167786 4.9088e-05 deg
peri 204.4198308664647 5.5501e-05 deg
M 184.4706832072849 2.6833e-05 deg
tp 2459583.730822121906
(2022-Jan-04.23082212)
9.0831e-05 TDB
period 1196.171100078026
3.27
6.1936e-06
1.696e-08
d
yr
n .3009602890226301 1.5583e-09 deg/d
Q 2.381313086678054 8.2201e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1478  
   data-arc span      7963 days (21.80 yr)  
   first obs. used      1999-01-22  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4775  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:20:31  

Additional Information
 Earth MOID = 1.04391 au 
 Jupiter MOID = 2.63712 au 
 T_jup = 3.654 
[ 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 15.4   n/a MPO325091  
rotation period rot_per 40.0087 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.]

91228 (1999 BG13)          Discovered 1999-Jan-24 by Korlevic, K. at Visnjan
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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