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JPL Small-Body Database Browser
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(2011 SM68)
Classification: Apollo [NEO, PHA]          SPK-ID: 3579078
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6642851211907709 1.3228e-07  
a 1.395792036399764 2.7956e-08 au
q .4685881543428339 1.7825e-07 au
i 19.22909723779321 2.6851e-05 deg
node 24.13535706233222 1.5935e-05 deg
peri 109.0868456639341 2.3436e-05 deg
M 47.99046454472983 5.3162e-05 deg
tp 2458920.206210662340
(2020-Mar-11.70621066)
8.6562e-05 TDB
period 602.3230747144706
1.65
1.8096e-05
4.954e-08
d
yr
n .5976858850553864 1.7956e-08 deg/d
Q 2.322995918456694 4.6527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      1807 days (4.95 yr)  
   first obs. used      2011-09-24  
   last obs. used      2016-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34542  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:52:42  

Additional Information
 Earth MOID = .00017996 au 
 Jupiter MOID = 2.91124 au 
 T_jup = 4.459 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455932.5 (2012-Jan-06.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6640687019976981 1.3249e-07  
q .4689219105060397 1.7837e-07 au
tp 2455908.508396447453
(2011-Dec-13.00839645)
1.5161e-05 TDB
node 24.20063495520989 1.596e-05 deg
peri 109.0359710477756 2.3472e-05 deg
i 19.22936950169876 2.6836e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      1807 days (4.95 yr)  
   first obs. used      2011-09-24  
   last obs. used      2016-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34542  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:52:42  

Additional Information
 Jupiter MOID = 2.91124 au 
 T_jup = 4.459 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.755291799764345E-14 -2.361433853557452E-14 -6.211237926126442E-13 -2.700746281429043E-13 2.216015540201283E-12 8.474174458016737E-13
q -2.361433853557452E-14 3.181633276045036E-14 7.975134769370238E-13 3.783879629940359E-13 -3.014617934544293E-12 -1.187976040025004E-12
tp -6.211237926126442E-13 7.975134769370238E-13 2.298632619596509E-10 1.861019712337645E-11 1.288540336571311E-12 6.588517735898051E-11
node -2.700746281429043E-13 3.783879629940359E-13 1.861019712337645E-11 2.547115819086031E-10 -2.690131654650214E-10 -3.204284783080128E-10
peri 2.216015540201283E-12 -3.014617934544293E-12 1.288540336571311E-12 -2.690131654650214E-10 5.509516716356448E-10 4.422182440157453E-10
i 8.474174458016737E-13 -1.187976040025004E-12 6.588517735898051E-11 -3.204284783080128E-10 4.422182440157453E-10 7.201611542537593E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.6   n/a MPO234776  

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