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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2353917142638284 3.8222e-08  
a 2.341808581749832 8.3933e-09 au
q 1.790566245213994 8.7169e-08 au
i 2.876989993229497 5.2427e-06 deg
node 326.1679685334451 7.6048e-05 deg
peri 87.91904581694008 7.713e-05 deg
M 45.53584150464744 1.088e-05 deg
tp 2459034.932007649267
(2020-Jul-04.43200765)
3.939e-05 TDB
period 1308.957411936278
3.58
7.0372e-06
1.927e-08
d
yr
n .2750280465332094 1.4786e-09 deg/d
Q 2.893050918285669 1.0369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      603  
   data-arc span      8206 days (22.47 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:35:06  

Additional Information
 Earth MOID = .80396 au 
 Jupiter MOID = 2.48568 au 
 T_jup = 3.524 
[ 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 16.59   n/a MPCxxxxx  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1993-Jan-16 21:44 00:02 Amphi 0.0471368888195217 0.0471339560782953 0.0471398216363537 2.53765903074564 2.53765898268618 2449004.405611795 2.33457606952139 179.186463292014 62.2750359155204 -38.17965918793 76426.2069618961 T 19 CATAB v2.0f-lin.ifort 2021-Apr-14 00:35:07 2021-Apr-14 00:35

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