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268520 (2005 YR203)
Classification: Main-belt Asteroid          SPK-ID: 2268520
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06176113379582419 4.8037e-08  
a 2.900069479874655 2.6507e-08 au
q 2.72095790071093 1.4544e-07 au
i 4.835110049131802 5.5584e-06 deg
node 296.1515132383123 5.31e-05 deg
peri 272.8965281685788 7.0608e-05 deg
M 285.0307906316078 4.7978e-05 deg
tp 2459576.156978584683
(2021-Dec-27.65697858)
0.00024154 TDB
period 1803.894071043825
4.94
2.4731e-05
6.771e-08
d
yr
n .1995682594553269 2.7361e-09 deg/d
Q 3.07918105903838 2.8144e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      6454 days (17.67 yr)  
   first obs. used      2003-07-05  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58068  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:24:08  

Additional Information
 Earth MOID = 1.72007 au 
 Jupiter MOID = 1.924 au 
 T_jup = 3.279 
[ 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 16.70   n/a MPCxxxxx  

268520 (2005 YR203)          Discovered 2005-Dec-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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