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120719 (1997 SQ11)
Classification: Outer Main-belt Asteroid          SPK-ID: 2120719
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0791860711850889 5.584e-08  
a 3.245942438834445 3.0182e-08 au
q 2.988909009810199 1.8644e-07 au
i 4.77168779019356 6.3856e-06 deg
node 356.8198225885227 5.3884e-05 deg
peri 123.8310442751969 6.435e-05 deg
M 224.441494261144 3.8913e-05 deg
tp 2460004.829357047575
(2023-Mar-01.32935705)
0.00023509 TDB
period 2136.041312633981
5.85
2.9792e-05
8.157e-08
d
yr
n .1685360661662855 2.3506e-09 deg/d
Q 3.50297586785869 3.2572e-08 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      8519 days (23.32 yr)  
   first obs. used      1997-08-11  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56671  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:49  

Additional Information
 Earth MOID = 2.00805 au 
 Jupiter MOID = 1.55126 au 
 T_jup = 3.172 
[ show covariance matrix ]

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 15.36   n/a E2021B55  

120719 (1997 SQ11)          Discovered 1997-Sep-27 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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