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JPL Small-Body Database Browser
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441730 (2009 BT68)
Classification: Main-belt Asteroid          SPK-ID: 2441730
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1069729824405267 5.3621e-08  
a 2.378153491056854 2.5001e-08 au
q 2.123755319417152 1.3816e-07 au
i 6.996583577218413 4.8069e-06 deg
node 144.506739004 4.922e-05 deg
peri 303.0852177722206 5.763e-05 deg
M 319.5788560130378 3.1666e-05 deg
tp 2458750.905718594621
(2019-Sep-24.40571859)
0.00011908 TDB
period 1339.547903729009
3.67
2.1124e-05
5.783e-08
d
yr
n .2687473878297585 4.238e-09 deg/d
Q 2.632551662696556 2.7676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      3519 days (9.63 yr)  
   first obs. used      2009-01-01  
   last obs. used      2018-08-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57289  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:45:41  

Additional Information
 Earth MOID = 1.14952 au 
 Jupiter MOID = 2.53037 au 
 T_jup = 3.522 
[ 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 16.9   n/a MPO456092  

441730 (2009 BT68)          Discovered 2009-Jan-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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