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120840 (1998 KH43)
Classification: Main-belt Asteroid          SPK-ID: 2120840
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2509529525185494 4.7233e-08  
a 2.737775386978064 1.5834e-08 au
q 2.050722570283305 1.2931e-07 au
i 14.66023723212342 6.2435e-06 deg
node 191.3233694328401 2.042e-05 deg
peri 290.2355322872134 2.7161e-05 deg
M 78.08860862923331 1.2455e-05 deg
tp 2458841.594318739069
(2019-Dec-24.09431874)
5.7645e-05 TDB
period 1654.608111503288
4.53
1.4355e-05
3.93e-08
d
yr
n .2175741781375188 1.8876e-09 deg/d
Q 3.424828203672824 1.9808e-08 au
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      8010 days (21.93 yr)  
   first obs. used      1998-05-19  
   last obs. used      2020-04-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61608  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:22  

Additional Information
 Earth MOID = 1.11614 au 
 Jupiter MOID = 1.87813 au 
 T_jup = 3.259 
[ 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 16.42   n/a E2021B55  

120840 (1998 KH43)          Discovered 1998-May-28 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 KH43 = 2002 GC124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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