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JPL Small-Body Database Browser
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357778 (2005 SJ212)
Classification: Outer Main-belt Asteroid          SPK-ID: 2357778
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1591473640908384 6.736e-08  
a 3.22607143073483 5.0848e-08 au
q 2.712650666164622 2.0728e-07 au
i 4.801016412418575 9.9665e-06 deg
node 210.4154997805986 8.7403e-05 deg
peri 254.5185563322615 0.00010201 deg
M 132.2429010480619 4.2314e-05 deg
tp 2458223.037836081893
(2018-Apr-14.53783608)
0.00024848 TDB
period 2116.456738262251
5.79
5.0039e-05
1.37e-07
d
yr
n .1700956100315018 4.0215e-09 deg/d
Q 3.739492195305037 5.8941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      4934 days (13.51 yr)  
   first obs. used      2005-09-30  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60151  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:47:30  

Additional Information
 Earth MOID = 1.73452 au 
 Jupiter MOID = 1.46024 au 
 T_jup = 3.162 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456676.5 (2014-Jan-19.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1612141002586898 6.7597e-08  
q 2.703849356908842 2.0814e-07 au
tp 2456106.349232657911
(2012-Jun-27.84923266)
0.00025138 TDB
node 210.4694651306784 8.7358e-05 deg
peri 254.128715135401 0.00010151 deg
i 4.803759269740492 9.973e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      4934 days (13.51 yr)  
   first obs. used      2005-09-30  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60151  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:47:30  

Additional Information
 Jupiter MOID = 1.46024 au 
 T_jup = 3.162 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.569299652080074E-15 -1.378841131267048E-14 -5.98023692117172E-12 4.164574418638378E-14 -1.275018998053928E-12 -1.693562846167595E-15
q -1.378841131267048E-14 4.332060803598343E-14 1.655256357528085E-11 -1.287240315264648E-13 3.667479033257247E-12 4.799218309806856E-15
tp -5.98023692117172E-12 1.655256357528085E-11 6.319319225465153E-8 -3.343074594117119E-10 1.302065274113417E-8 -1.361411285344053E-11
node 4.164574418638378E-14 -1.287240315264648E-13 -3.343074594117119E-10 7.631473107208038E-9 -7.672911640501549E-9 -9.8600895826094E-11
peri -1.275018998053928E-12 3.667479033257247E-12 1.302065274113417E-8 -7.672911640501549E-9 1.030434784363646E-8 9.532059959839392E-11
i -1.693562846167595E-15 4.799218309806856E-15 -1.361411285344053E-11 -9.8600895826094E-11 9.532059959839392E-11 9.946035373525032E-11

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 16.4   n/a MPO434258  

357778 (2005 SJ212)          Discovered 2005-Sep-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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