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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883922338221279 5.8365e-08  
a 2.641138059740894 1.5834e-08 au
q 2.143568160833666 1.5588e-07 au
i 4.51017644924704 4.4151e-06 deg
node 248.4737106208116 8.514e-05 deg
peri 314.3757485783666 8.612e-05 deg
M 60.89010673366952 1.4385e-05 deg
tp 2458735.326990935251
(2019-Sep-08.82699094)		 6.1709e-05 TDB
period 1567.779864155224
4.29		 1.4099e-05
3.86e-08		 d
yr
n .2296240742918209 2.065e-09 deg/d
Q 3.138707958648121 1.8817e-08 au
   Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      7652 days (20.95 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5244  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:23:42  

Additional Information
 Earth MOID = 1.14291 au 
 Jupiter MOID = 1.84565 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 16.0   n/a MPO426761  

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

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