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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6663741758978381 1.0314e-07  
a 2.5227665221734 9.1588e-09 au
q .8416600599774456 2.6161e-07 au
i 2.382616193584917 1.0969e-05 deg
node 188.735854402985 3.9239e-05 deg
peri 243.1686695056057 6.2281e-05 deg
M 95.39606721179301 5.0085e-06 deg
tp 2458812.669477151326
(2019-Nov-25.16947715)
2.1235e-05 TDB
period 1463.571741543059
4.01
7.9701e-06
2.182e-08
d
yr
n .2459735930815719 1.3395e-09 deg/d
Q 4.203872984369355 1.5262e-08 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   # delay obs. used      4  
   # Doppler obs. used      1  
   data-arc span      2929 days (8.02 yr)  
   first obs. used      2011-09-26  
   last obs. used      2019-10-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34646  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:21:51  

Additional Information
 Earth MOID = .00750769 au 
 Jupiter MOID = 1.12999 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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