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JPL Small-Body Database Browser
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379246 (2009 SJ355)
Classification: Main-belt Asteroid          SPK-ID: 2379246
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02377393935236213 8.7357e-08  
a 2.680066466063966 3.9196e-08 au
q 2.616350728439462 2.5001e-07 au
i 9.499647006393516 1.0233e-05 deg
node 44.05761818329275 5.2837e-05 deg
peri 9.400496027898514 0.00021188 deg
M 150.9992000035823 0.00020839 deg
tp 2458328.314840944118
(2018-Jul-28.81484094)
0.0009224 TDB
period 1602.569134501221
4.39
3.5157e-05
9.625e-08
d
yr
n .2246392946486177 4.9281e-09 deg/d
Q 2.74378220368847 4.0128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      76  
   data-arc span      6609 days (18.09 yr)  
   first obs. used      2000-11-30  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65323  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:54:28  

Additional Information
 Earth MOID = 1.62643 au 
 Jupiter MOID = 2.33459 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456787.5 (2014-May-10.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02206637753806346 8.5868e-08  
q 2.621371778960193 2.4494e-07 au
tp 2456737.745300896400
(2014-Mar-21.24530090)
0.00099758 TDB
node 44.17509012835953 5.2856e-05 deg
peri 12.3124199615093 0.00023066 deg
i 9.497862407884975 1.0226e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      76  
   data-arc span      6609 days (18.09 yr)  
   first obs. used      2000-11-30  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65323  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:54:28  

Additional Information
 Jupiter MOID = 2.33459 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.373396330964318E-15 -2.080522839799675E-14 -2.745639869851329E-11 1.569276265648367E-14 -6.170514004671109E-12 -9.897167808973802E-15
q -2.080522839799675E-14 5.999750152425674E-14 8.536148853532253E-11 -3.637897873733191E-14 1.919077873605452E-11 3.237411322328444E-14
tp -2.745639869851329E-11 8.536148853532253E-11 9.951660469420426E-7 4.169817818161336E-10 2.240629569137289E-7 8.360406607688005E-12
node 1.569276265648367E-14 -3.637897873733191E-14 4.169817818161336E-10 2.793715084044887E-9 -2.659610361587851E-9 -1.646303032870115E-10
peri -6.170514004671109E-12 1.919077873605452E-11 2.240629569137289E-7 -2.659610361587851E-9 5.320328633002237E-8 1.636292642088744E-10
i -9.897167808973802E-15 3.237411322328444E-14 8.360406607688005E-12 -1.646303032870115E-10 1.636292642088744E-10 1.045721230219795E-10

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 16.7   n/a MPO427884  

379246 (2009 SJ355)          Discovered 2009-Sep-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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