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382518 (2001 SG156)
Classification: Main-belt Asteroid          SPK-ID: 2382518
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1975209991589549 5.4303e-08  
a 2.447318141739031 1.8259e-08 au
q 1.963921417122901 1.2893e-07 au
i 6.759022298871171 6.0744e-06 deg
node 220.5811878163908 5.1341e-05 deg
peri 184.9462985663828 5.5246e-05 deg
M 288.5986747482465 2.6263e-05 deg
tp 2459277.856177397062
(2021-Mar-04.35617740)
0.00010454 TDB
period 1398.40855209463
3.83
1.565e-05
4.285e-08
d
yr
n .2574354965584041 2.881e-09 deg/d
Q 2.930714866355161 2.1866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      7414 days (20.30 yr)  
   first obs. used      1999-02-13  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60073  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:35:42  

Additional Information
 Earth MOID = .973344 au 
 Jupiter MOID = 2.46586 au 
 T_jup = 3.461 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457132.5 (2015-Apr-20.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1996628471074914 5.4598e-08  
q 1.957111513103779 1.3013e-07 au
tp 2456482.277041223163
(2013-Jul-08.77704122)
8.0253e-05 TDB
node 220.6717479347586 5.122e-05 deg
peri 184.7620425961032 5.5031e-05 deg
i 6.769485524933579 6.0843e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      7414 days (20.30 yr)  
   first obs. used      1999-02-13  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60073  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:35:42  

Additional Information
 Jupiter MOID = 2.46586 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.980963092271822E-15 -7.066824514133323E-15 9.618233307020582E-13 -1.291608731453508E-15 2.022105206016247E-13 -2.331375799531441E-15
q -7.066824514133323E-15 1.69346711433821E-14 -1.59288455894379E-12 3.912139159291496E-15 -3.002575364914998E-13 4.710313870858915E-15
tp 9.618233307020582E-13 -1.59288455894379E-12 6.440575449639601E-9 3.322324355681505E-12 1.649768660962231E-9 -9.463264016281676E-12
node -1.291608731453508E-15 3.912139159291496E-15 3.322324355681505E-12 2.623530494959154E-9 -2.603987364013923E-9 2.158022599702106E-11
peri 2.022105206016247E-13 -3.002575364914998E-13 1.649768660962231E-9 -2.603987364013923E-9 3.028457154331599E-9 -2.36192961518995E-11
i -2.331375799531441E-15 4.710313870858915E-15 -9.463264016281676E-12 2.158022599702106E-11 -2.36192961518995E-11 3.701822346550786E-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 17.2   n/a MPO437565  

382518 (2001 SG156)          Discovered 2001-Sep-17 by LINEAR at Socorro
Reference: Last Updated: 2014-01-21

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