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120723 (1997 SA16)
Classification: Main-belt Asteroid          SPK-ID: 2120723
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1248375243988341 3.5054e-08  
a 2.56664749711816 9.4713e-09 au
q 2.246233577573465 8.7307e-08 au
i 1.215391476598442 3.8361e-06 deg
node 329.9417202068781 0.00015645 deg
peri 110.8152198360237 0.0001573 deg
M 192.9965365256333 1.6141e-05 deg
tp 2459897.240000357659
(2022-Nov-13.74000036)
6.8911e-05 TDB
period 1501.923342848854
4.11
8.3135e-06
2.276e-08
d
yr
n .2396926592253041 1.3268e-09 deg/d
Q 2.887061416662854 1.0654e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1121  
   data-arc span      8297 days (22.72 yr)  
   first obs. used      1997-09-27  
   last obs. used      2020-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50671  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:50  

Additional Information
 Earth MOID = 1.26196 au 
 Jupiter MOID = 2.32076 au 
 T_jup = 3.421 
[ 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 15.66   n/a E2021B55  

120723 (1997 SA16)          Discovered 1997-Sep-27 by ODAS at Caussols
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1997 SA16 = 2001 SQ163 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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