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441536 (2008 SG307)
Classification: Main-belt Asteroid          SPK-ID: 2441536
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2176937484834838 9.1143e-08  
a 2.475052875182437 3.3974e-08 au
q 1.936249337089148 2.2271e-07 au
i 5.326371799535747 2.2274e-05 deg
node 68.57419885032805 6.5936e-05 deg
peri 281.9527874414806 9.7812e-05 deg
M 18.33514171311507 6.9004e-05 deg
tp 2458928.063589861700
(2020-Mar-19.56358986)
0.00027169 TDB
period 1422.247401073269
3.89
2.9284e-05
8.018e-08
d
yr
n .2531205187848005 5.2117e-09 deg/d
Q 3.013856413275726 4.1369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      4444 days (12.17 yr)  
   first obs. used      2007-04-22  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59016  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:10  

Additional Information
 Earth MOID = .939096 au 
 Jupiter MOID = 2.43535 au 
 T_jup = 3.443 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457066.5 (2015-Feb-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2191493690820855 9.3352e-08  
q 1.932023748530554 2.2879e-07 au
tp 2457506.706835196266
(2016-Apr-28.20683520)
0.00025266 TDB
node 68.5866115989443 6.5921e-05 deg
peri 282.2083711143891 9.7448e-05 deg
i 5.328172946261687 2.2282e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      4444 days (12.17 yr)  
   first obs. used      2007-04-22  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59016  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:10  

Additional Information
 Jupiter MOID = 2.43535 au 
 T_jup = 3.443 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.714569435076957E-15 -2.12217874805267E-14 1.929641680091097E-11 -8.842075771558904E-14 5.509185983618809E-12 -9.550393142272244E-14
q -2.12217874805267E-14 5.23434544951882E-14 -4.439064567512742E-11 1.941301260183667E-13 -1.272044490284855E-11 2.339013459341314E-13
tp 1.929641680091097E-11 -4.439064567512742E-11 6.38384840018468E-8 -3.114220579095043E-10 1.815259743910544E-8 -2.557299704215969E-10
node -8.842075771558904E-14 1.941301260183667E-13 -3.114220579095043E-10 4.345642512859849E-9 -4.41262817906949E-9 -8.385067032369533E-10
peri 5.509185983618809E-12 -1.272044490284855E-11 1.815259743910544E-8 -4.41262817906949E-9 9.49608859735773E-9 7.627277387722287E-10
i -9.550393142272244E-14 2.339013459341314E-13 -2.557299704215969E-10 -8.385067032369533E-10 7.627277387722287E-10 4.964806618826167E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.8   n/a MPO419202  

441536 (2008 SG307)          Discovered 2008-Sep-29 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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