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103226 (1999 YH9)
Classification: Inner Main-belt Asteroid          SPK-ID: 2103226
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05351933991583938 3.9082e-08  
a 1.905738004793219 6.378e-09 au
q 1.803744164724157 7.7184e-08 au
i 22.53348044428418 4.6021e-06 deg
node 115.1604629340218 9.0894e-06 deg
peri 50.83857386081321 4.1068e-05 deg
M 302.4502641975251 3.9131e-05 deg
tp 2459354.115151199741
(2021-May-19.61515120)
0.00010442 TDB
period 960.9332460137631
2.63
4.824e-06
1.321e-08
d
yr
n .3746358048213932 1.8807e-09 deg/d
Q 2.007731844862281 6.7194e-09 au
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      7692 days (21.06 yr)  
   first obs. used      1999-12-31  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51101  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:33:46  

Additional Information
 Earth MOID = .846309 au 
 Jupiter MOID = 3.08213 au 
 T_jup = 3.847 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO474905  

103226 (1999 YH9)          Discovered 1999-Dec-31 by Korlevic, K. at Visnjan
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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