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226257 (2002 YZ31)
Classification: Main-belt Asteroid          SPK-ID: 2226257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2354768154705874 3.8081e-08  
a 2.341690576396738 8.3832e-09 au
q 1.79027673664935 8.677e-08 au
i 2.876971359829468 5.2388e-06 deg
node 326.1677216856763 7.4677e-05 deg
peri 87.90094957824162 7.5766e-05 deg
M 99.4516528216929 1.0937e-05 deg
tp 2459034.921837286713
(2020-Jul-04.42183729)
3.9367e-05 TDB
period 1308.858474279579
3.58
7.0286e-06
1.924e-08
d
yr
n .2750488361227527 1.477e-09 deg/d
Q 2.893104416144126 1.0357e-08 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      8259 days (22.61 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-05-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:48:07  

Additional Information
 Earth MOID = .803997 au 
 Jupiter MOID = 2.48668 au 
 T_jup = 3.524 
[ 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 16.59   n/a MPCxxxxx  

226257 (2002 YZ31)          Discovered 2002-Dec-31 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2002 YZ31 = 1998 SF108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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