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212946 (2008 YU145)
Classification: Main-belt Asteroid          SPK-ID: 2212946
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .173778670169504 5.0214e-08  
a 3.104390607595107 2.6749e-08 au
q 2.564913736120531 1.5344e-07 au
i 1.756282184448024 5.9683e-06 deg
node 142.8847115234551 0.00017938 deg
peri 309.6285452575843 0.00018051 deg
M 122.3520490574168 1.8736e-05 deg
tp 2458717.496966896175
(2019-Aug-21.99696690)
0.00010096 TDB
period 1997.850414443544
5.47
2.5821e-05
7.069e-08
d
yr
n .1801936708561185 2.3289e-09 deg/d
Q 3.643867479069682 3.1397e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      6774 days (18.55 yr)  
   first obs. used      2002-11-24  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:30:55  

Additional Information
 Earth MOID = 1.58213 au 
 Jupiter MOID = 1.55617 au 
 T_jup = 3.197 
[ 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 16.32   n/a E2021B55  

212946 (2008 YU145)          Discovered 2008-Dec-30 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2008 YU145 = 2002 XZ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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