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243391 (2008 YG109)
Classification: Main-belt Asteroid          SPK-ID: 2243391
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2145728975882754 4.6048e-08  
a 2.40202035222864 1.6046e-08 au
q 1.886611885184931 1.0699e-07 au
i 4.859746022349225 4.7502e-06 deg
node 102.9550272823099 5.274e-05 deg
peri 194.6738306446759 5.4088e-05 deg
M 213.3363232497816 1.2838e-05 deg
tp 2459554.466520614478
(2021-Dec-05.96652061)
5.2217e-05 TDB
period 1359.763725007768
3.72
1.3626e-05
3.731e-08
d
yr
n .2647518781234905 2.653e-09 deg/d
Q 2.917428819272349 1.9489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      8457 days (23.15 yr)  
   first obs. used      1996-12-02  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58404  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:20:20  

Additional Information
 Earth MOID = .871221 au 
 Jupiter MOID = 2.29874 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457043.5 (2015-Jan-21.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2155189287227987 4.6084e-08  
q 1.883792229451286 1.0718e-07 au
tp 2456835.252212721774
(2014-Jun-26.75221272)
3.8101e-05 TDB
node 103.0142077873302 5.2747e-05 deg
peri 194.6413065143621 5.408e-05 deg
i 4.860481131122039 4.7518e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      8457 days (23.15 yr)  
   first obs. used      1996-12-02  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58404  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:20:20  

Additional Information
 Jupiter MOID = 2.29874 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.123776035649619E-15 -4.909318652151823E-15 4.696437862756774E-13 3.171656210493535E-14 8.305817121361863E-14 -3.291267892698392E-15
q -4.909318652151823E-15 1.148701754697363E-14 -1.012347720343917E-12 -7.372661543174971E-14 -1.641379535042631E-13 7.712366732533742E-15
tp 4.696437862756774E-13 -1.012347720343917E-12 1.451673298426505E-9 1.317463634505046E-11 4.686322573907306E-10 -1.86070209291309E-12
node 3.171656210493535E-14 -7.372661543174971E-14 1.317463634505046E-11 2.782229812022222E-9 -2.767992743177545E-9 8.039390932557514E-11
peri 8.305817121361863E-14 -1.641379535042631E-13 4.686322573907306E-10 -2.767992743177545E-9 2.92459428866749E-9 -8.067769156422037E-11
i -3.291267892698392E-15 7.712366732533742E-15 -1.86070209291309E-12 8.039390932557514E-11 -8.067769156422037E-11 2.25799667553792E-11

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 17.0   n/a MPO454786  

243391 (2008 YG109)          Discovered 2008-Dec-29 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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