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120818 (1998 HA68)
Classification: Main-belt Asteroid          SPK-ID: 2120818
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1889996438806552 4.7993e-08  
a 2.640297691055278 1.5102e-08 au
q 2.141282367706915 1.2594e-07 au
i 4.507760749478724 4.2036e-06 deg
node 248.4182519094683 7.6267e-05 deg
peri 314.3161025882387 7.7365e-05 deg
M 106.8761623107766 1.3892e-05 deg
tp 2458735.282416776426
(2019-Sep-08.78241678)		 5.9079e-05 TDB
period 1567.03165925335
4.29		 1.3445e-05
3.681e-08		 d
yr
n .2297337120626719 1.9711e-09 deg/d
Q 3.139313014403642 1.7956e-08 au
   Orbit Determination Parameters
   # obs. used (total)      453  
   data-arc span      8133 days (22.27 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:32  

Additional Information
 Earth MOID = 1.13984 au 
 Jupiter MOID = 1.84389 au 
 T_jup = 3.365 
[ 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 16.07   n/a E2021B55  

120818 (1998 HA68)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1998 HA68 = 2002 CO226 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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