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JPL Small-Body Database Browser
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441725 (2009 BJ52)
Classification: Main-belt Asteroid          SPK-ID: 2441725
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452626631854503 1.0313e-07  
a 2.695928331453627 5.522e-08 au
q 2.304310602269566 2.9353e-07 au
i 6.612175989950898 9.1015e-06 deg
node 119.42937978 9.4637e-05 deg
peri 263.7139280574042 9.8829e-05 deg
M 204.7945827123236 3.1452e-05 deg
tp 2459297.552222092591
(2021-Mar-24.05222209)
0.00014893 TDB
period 1616.817275702514
4.43
4.9675e-05
1.36e-07
d
yr
n .2226596693454914 6.841e-09 deg/d
Q 3.087546060637688 6.3241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      4183 days (11.45 yr)  
   first obs. used      2007-10-20  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68705  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:45:28  

Additional Information
 Earth MOID = 1.31817 au 
 Jupiter MOID = 2.39379 au 
 T_jup = 3.345 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457190.5 (2015-Jun-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1462030782940274 1.0328e-07  
q 2.300838940624991 2.9433e-07 au
tp 2457682.440668718191
(2016-Oct-20.94066872)
0.00013485 TDB
node 119.45708766676 9.4658e-05 deg
peri 263.9569029609423 9.8778e-05 deg
i 6.612537478765575 9.1024e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      4183 days (11.45 yr)  
   first obs. used      2007-10-20  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68705  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:45:28  

Additional Information
 Jupiter MOID = 2.39379 au 
 T_jup = 3.345 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.066724007687967E-14 -3.00247825707037E-14 3.378232799467724E-14 2.468332891673513E-14 6.340952438131613E-14 -1.258237704420876E-14
q -3.00247825707037E-14 8.663186837595091E-14 4.571360909950807E-13 -6.381559095229047E-14 -2.22202346353503E-13 3.742233237593343E-14
tp 3.378232799467724E-14 4.571360909950807E-13 1.818407115942593E-8 7.722186579695292E-11 3.940126465736547E-9 5.331184386717729E-12
node 2.468332891673513E-14 -6.381559095229047E-14 7.722186579695292E-11 8.960183063831654E-9 -8.883135365961788E-9 6.027257054260489E-11
peri 6.340952438131613E-14 -2.22202346353503E-13 3.940126465736547E-9 -8.883135365961788E-9 9.757084920649826E-9 -5.893383416865133E-11
i -1.258237704420876E-14 3.742233237593343E-14 5.331184386717729E-12 6.027257054260489E-11 -5.893383416865133E-11 8.285398562610067E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO386693  

441725 (2009 BJ52)          Discovered 2009-Jan-02 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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