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192540 (1998 SN120)
Classification: Main-belt Asteroid          SPK-ID: 2192540
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1557623406778529 3.8293e-08  
a 2.203809856097219 1.0334e-08 au
q 1.860539274502594 8.3274e-08 au
i 3.711605378479748 4.5561e-06 deg
node 181.5280779369019 6.9601e-05 deg
peri 220.9936870493569 7.1699e-05 deg
M 320.7452920583517 2.0465e-05 deg
tp 2459526.801332861687
(2021-Nov-08.30133286)
6.8528e-05 TDB
period 1194.977170634823
3.27
8.405e-06
2.301e-08
d
yr
n .3012609854368621 2.119e-09 deg/d
Q 2.547080437691844 1.1943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      7940 days (21.74 yr)  
   first obs. used      1998-09-20  
   last obs. used      2020-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5275  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:33  

Additional Information
 Earth MOID = .87011 au 
 Jupiter MOID = 2.84407 au 
 T_jup = 3.644 
[ 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 17.16   n/a E2021B55  

192540 (1998 SN120)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 1998 SN120 = 2000 GM120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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