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28248 Barthelemy (1999 BQ4)
Classification: Main-belt Asteroid          SPK-ID: 2028248
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2118557338114319 4.1532e-08  
a 2.595596423485513 7.8202e-09 au
q 2.045704438509662 1.0673e-07 au
i 2.487654363163658 3.8295e-06 deg
node 324.0005069646456 9.4732e-05 deg
peri 41.73340158007273 9.5078e-05 deg
M 253.3263281592234 9.6809e-06 deg
tp 2459849.094134179950
(2022-Sep-26.59413418)
4.2025e-05 TDB
period 1527.404892820983
4.18
6.9028e-06
1.89e-08
d
yr
n .2356938894801571 1.0652e-09 deg/d
Q 3.145488408461365 9.477e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1882  
   data-arc span      10077 days (27.59 yr)  
   first obs. used      1993-12-11  
   last obs. used      2021-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:46:38  

Additional Information
 Earth MOID = 1.04398 au 
 Jupiter MOID = 2.32456 au 
 T_jup = 3.384 
[ 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 14.14   n/a MPO636477  

28248 Barthelemy           Discovered 1999 Jan. 19 by ODAS at Caussols.
Pierre Barthélémy (b. 1967) is a French scientific journalist working mainly for "Le Monde", where he is responsible for the science blog, as well as covering chess. He lives in Cognac in the west of France.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-09-28Last Updated: 2015-10-05

Alternate Designations
 1999 BQ4 = 1997 US22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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