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(2011 SE97)
Classification: Apollo [NEO]          SPK-ID: 3579460
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6663786913855161 1.148e-07  
a 2.523181321711617 9.5309e-09 au
q .8417870544210526 2.9131e-07 au
i 2.382452055922123 1.1262e-05 deg
node 188.7344316152226 3.9846e-05 deg
peri 243.1810742559015 6.7312e-05 deg
M 46.18578617381724 5.6557e-06 deg
tp 2458812.686434178518
(2019-Nov-25.18643418)
2.3527e-05 TDB
period 1463.932722532353
4.01
8.2946e-06
2.271e-08
d
yr
n .2459129401638497 1.3933e-09 deg/d
Q 4.204575589002181 1.5882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   # delay obs. used      4  
   # Doppler obs. used      1  
   data-arc span      1446 days (3.96 yr)  
   first obs. used      2011-09-26  
   last obs. used      2015-09-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40312  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:52:40  

Additional Information
 Earth MOID = .00769838 au 
 Jupiter MOID = 1.12847 au 
 T_jup = 3.100 
[ show covariance matrix ]

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 24.7   n/a MPO227505  
rotation period rot_per 0.017 h n/a Pers comm. M. Nolan (Arecibo) 2011-Oct-11 Small fast rotator, period on order of a minute.

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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