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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2510539049987048 4.7243e-08  
a 2.738236129246452 1.5882e-08 au
q 2.050791256190592 1.2941e-07 au
i 14.65942643166886 6.2432e-06 deg
node 191.3232843936055 2.0421e-05 deg
peri 290.2610647500101 2.7151e-05 deg
M 34.54691485256483 1.2486e-05 deg
tp 2458841.677678323346
(2019-Dec-24.17767832)
5.7606e-05 TDB
period 1655.025811931529
4.53
1.4399e-05
3.942e-08
d
yr
n .2175192661073093 1.8925e-09 deg/d
Q 3.425681002302313 1.9869e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61612  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:40:12  

Additional Information
 Earth MOID = 1.11624 au 
 Jupiter MOID = 1.87787 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 16.3   n/a MPO320376  

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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