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442623 (2012 SL15)
Classification: Main-belt Asteroid          SPK-ID: 2442623
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 .1498911129482352 6.4262e-08  
a 2.250764001784856 2.7914e-08 au
q 1.9133944805735 1.4126e-07 au
i 8.046891048579859 1.6904e-05 deg
node 344.2230110192236 5.5738e-05 deg
peri 75.28397503698316 7.815e-05 deg
M 66.49950513140649 5.4823e-05 deg
tp 2458772.670855004729
(2019-Oct-16.17085500)
0.00018679 TDB
period 1233.369963223406
3.38
2.2944e-05
6.282e-08
d
yr
n .2918832229861849 5.4299e-09 deg/d
Q 2.588133522996212 3.2098e-08 au
  Orbit Determination Parameters
   # obs. used (total)      63  
   data-arc span      5199 days (14.23 yr)  
   first obs. used      2005-08-31  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55635  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 22:53:03  

Additional Information
 Earth MOID = .943656 au 
 Jupiter MOID = 2.75186 au 
 T_jup = 3.600 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457044.5 (2015-Jan-22.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1493262484011522 6.3989e-08  
q 1.914712187030034 1.4051e-07 au
tp 2457537.749389353384
(2016-May-29.24938935)
0.00018413 TDB
node 344.3090730076424 5.568e-05 deg
peri 74.87092600353196 7.8422e-05 deg
i 8.052767315026601 1.691e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      63  
   data-arc span      5199 days (14.23 yr)  
   first obs. used      2005-08-31  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55635  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 22:53:03  

Additional Information
 Jupiter MOID = 2.75186 au 
 T_jup = 3.600 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.094647373049421E-15 -8.868859195051933E-15 5.042426244659752E-13 4.309275433876062E-14 2.085878371827469E-13 -1.36881872446896E-14
q -8.868859195051933E-15 1.974439874374165E-14 -5.855216457240904E-13 -9.064407514761186E-14 -3.699921433715394E-13 2.860013870313674E-14
tp 5.042426244659752E-13 -5.855216457240904E-13 3.390458174735002E-8 -5.334285364531799E-11 1.018757477446023E-8 4.415042419038234E-11
node 4.309275433876062E-14 -9.064407514761186E-14 -5.334285364531799E-11 3.100273445591665E-9 -3.084343311810296E-9 -4.329209984059408E-10
peri 2.085878371827469E-13 -3.699921433715394E-13 1.018757477446023E-8 -3.084343311810296E-9 6.149975865049292E-9 4.422797210977146E-10
i -1.36881872446896E-14 2.860013870313674E-14 4.415042419038234E-11 -4.329209984059408E-10 4.422797210977146E-10 2.859578474265772E-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 18.4   n/a MPO349191  

442623 (2012 SL15)          Discovered 2005-Aug-31 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 SL15 = 2007 EP50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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