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227512 (2005 YE21)
Classification: Main-belt Asteroid          SPK-ID: 2227512
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07407553485931183 4.4013e-08  
a 2.836328699727279 2.3147e-08 au
q 2.626226134258165 1.2799e-07 au
i 1.131181831032886 5.6275e-06 deg
node 319.2035615333672 0.00024571 deg
peri 85.72425684236062 0.00024879 deg
M 102.1366070244052 3.8503e-05 deg
tp 2458705.492029632211
(2019-Aug-09.99202963)
0.00018591 TDB
period 1744.750237197748
4.78
2.1358e-05
5.848e-08
d
yr
n .2063332575201123 2.5258e-09 deg/d
Q 3.046431265196394 2.4862e-08 au
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      6927 days (18.97 yr)  
   first obs. used      2002-03-20  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:40:03  

Additional Information
 Earth MOID = 1.63455 au 
 Jupiter MOID = 2.24064 au 
 T_jup = 3.307 
[ 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 16.5   n/a MPO533585  

227512 (2005 YE21)          Discovered 2005-Dec-24 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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