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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1975209484429141 4.3338e-08  
a 2.447318118730482 1.085e-08 au
q 1.963921522777309 1.0933e-07 au
i 6.75902834442534 4.6989e-06 deg
node 220.5812113330682 4.7669e-05 deg
peri 184.946254613492 5.0012e-05 deg
M 288.5987063398647 1.6947e-05 deg
tp 2459277.856050769067
(2021-Mar-04.35605077)
6.6772e-05 TDB
period 1398.408532373848
3.83
9.2993e-06
2.546e-08
d
yr
n .2574355001888377 1.7119e-09 deg/d
Q 2.930714714683656 1.2993e-08 au
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      7920 days (21.68 yr)  
   first obs. used      1999-02-13  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58834  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:42:00  

Additional Information
 Earth MOID = .973344 au 
 Jupiter MOID = 2.46586 au 
 T_jup = 3.461 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457685.5 (2016-Oct-24.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1995305369542225 4.3568e-08  
q 1.958018113894463 1.1015e-07 au
tp 2457878.792136136313
(2017-May-05.29213614)
6.1072e-05 TDB
node 220.6629446613613 4.7559e-05 deg
peri 184.6777514537774 4.9832e-05 deg
i 6.768816216030071 4.7068e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      7920 days (21.68 yr)  
   first obs. used      1999-02-13  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58834  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:42:00  

Additional Information
 Jupiter MOID = 2.46586 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.89818292254381E-15 -4.786059197129329E-15 -1.021560537140056E-12 -2.082046453539021E-14 -2.031967945092277E-13 -3.493854127838602E-15
q -4.786059197129329E-15 1.213240082617928E-14 2.723474603540937E-12 5.433365652187588E-14 5.459595430654601E-13 9.273003083581776E-15
tp -1.021560537140056E-12 2.723474603540937E-12 3.729752495048281E-9 4.431160207605456E-11 9.429779790618987E-10 6.10099419024521E-12
node -2.082046453539021E-14 5.433365652187588E-14 4.431160207605456E-11 2.261820289573616E-9 -2.234451299232051E-9 -4.541119609943918E-11
peri -2.031967945092277E-13 5.459595430654601E-13 9.429779790618987E-10 -2.234451299232051E-9 2.483205901696556E-9 4.675730144201325E-11
i -3.493854127838602E-15 9.273003083581776E-15 6.10099419024521E-12 -4.541119609943918E-11 4.675730144201325E-11 2.21538908554256E-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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