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305999 (2009 SH362)
Classification: Main-belt Asteroid          SPK-ID: 2305999
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09298422518493345 6.0163e-08  
a 2.22915355479822 1.6621e-08 au
q 2.021877438687068 1.3174e-07 au
i 7.829923743274627 5.9463e-06 deg
node 17.18831988347076 4.3749e-05 deg
peri 244.3852238059524 5.2181e-05 deg
M 193.8756737792765 2.958e-05 deg
tp 2459561.469355427352
(2021-Dec-12.96935543)
0.0001018 TDB
period 1215.649583345934
3.33
1.3596e-05
3.722e-08
d
yr
n .2961379701288112 3.312e-09 deg/d
Q 2.436429670909373 1.8166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      7897 days (21.62 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60119  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:58:47  

Additional Information
 Earth MOID = 1.02155 au 
 Jupiter MOID = 2.61535 au 
 T_jup = 3.625 
[ 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 16.9   n/a MPO503303  

305999 (2009 SH362)          Discovered 2005-Jun-06 by Siding Spring Survey at Siding Spring
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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