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85863 (1999 BG)
Classification: Main-belt Asteroid          SPK-ID: 2085863
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05829796940842163 4.4759e-08  
a 2.415645519503435 9.498e-09 au
q 2.274818290905833 1.1039e-07 au
i 6.584339389262324 4.2213e-06 deg
node 324.9791837905648 3.6772e-05 deg
peri 194.683771783381 5.1821e-05 deg
M 323.3040682739351 3.7076e-05 deg
tp 2459536.285991823089
(2021-Nov-17.78599182)
0.00014144 TDB
period 1371.3497570241
3.75
8.0879e-06
2.214e-08
d
yr
n .2625150864366059 1.5483e-09 deg/d
Q 2.556472748101037 1.0052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      9536 days (26.11 yr)  
   first obs. used      1995-01-04  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53603  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:15:25  

Additional Information
 Earth MOID = 1.28525 au 
 Jupiter MOID = 2.42916 au 
 T_jup = 3.505 
[ 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 15.23   n/a E2021B10  
rotation period rot_per 5.83 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:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

85863 (1999 BG)          Discovered 1999-Jan-16 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 BG = 1995 AY2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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