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312619 (2009 SS246)
Classification: Jupiter Trojan          SPK-ID: 2312619
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1375807097473909 6.8998e-08  
a 5.243413492353636 2.6059e-07 au
q 4.522020942576577 4.8129e-07 au
i 14.38527422614888 8.5039e-06 deg
node 178.3822266051639 2.3125e-05 deg
peri 258.8760649968546 4.8479e-05 deg
M 276.7649379760974 5.3195e-05 deg
tp 2460014.466004370188
(2023-Mar-10.96600437)
0.00070777 TDB
period 4385.504770434877
12.01
0.00032693
8.951e-07
d
yr
n .08208861210845327 6.1196e-09 deg/d
Q 5.964806042130696 2.9644e-07 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      6840 days (18.73 yr)  
   first obs. used      2000-11-30  
   last obs. used      2019-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63312  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:08  

Additional Information
 Earth MOID = 3.57468 au 
 Jupiter MOID = .00475726 au 
 T_jup = 2.919 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456822.5 (2014-Jun-14.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377329614082849 6.8686e-08  
q 4.51850011675195 4.78e-07 au
tp 2455635.783385597262
(2011-Mar-15.28338560)
0.000482 TDB
node 178.4714527455954 2.3128e-05 deg
peri 258.9900121909325 4.8418e-05 deg
i 14.38646192826117 8.5041e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      6840 days (18.73 yr)  
   first obs. used      2000-11-30  
   last obs. used      2019-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63312  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:08  

Additional Information
 Jupiter MOID = .00475726 au 
 T_jup = 2.919 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.717830157322484E-15 -2.934069646987557E-14 2.423939185596423E-12 -1.357167890538087E-14 -2.199033897288279E-13 -2.126938759729846E-15
q -2.934069646987557E-14 2.284847879961584E-13 4.176234219856159E-11 1.074207098265981E-13 7.273269497346834E-12 3.445495746759522E-14
tp 2.423939185596423E-12 4.176234219856159E-11 2.323276731419085E-7 -7.612161485346669E-12 2.019245753632567E-8 -1.675244547499721E-11
node -1.357167890538087E-14 1.074207098265981E-13 -7.612161485346669E-12 5.349258867562074E-10 -5.166040488178166E-10 -2.513953591235693E-11
peri -2.199033897288279E-13 7.273269497346834E-12 2.019245753632567E-8 -5.166040488178166E-10 2.34433992222108E-9 2.380481135676334E-11
i -2.126938759729846E-15 3.445495746759522E-14 -1.675244547499721E-11 -2.513953591235693E-11 2.380481135676334E-11 7.232013903716261E-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 13.6   n/a MPO413278  

312619 (2009 SS246)          Discovered 2000-Nov-30 by Sloan Digital Sky Survey at Apache Point
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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