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266781 (2009 SR237)
Classification: Main-belt Asteroid          SPK-ID: 2266781
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1906836854452725 5.7987e-08  
a 3.166565125557021 4.2747e-08 au
q 2.562752817213336 1.8934e-07 au
i 17.53976795396288 6.7167e-06 deg
node 33.64753608039663 1.9061e-05 deg
peri 10.26253242353921 2.5919e-05 deg
M 296.3551304908684 1.7186e-05 deg
tp 2459364.366407654898
(2021-May-29.86640765)
0.00010082 TDB
period 2058.169146485072
5.63
4.1677e-05
1.141e-07
d
yr
n .1749127376701791 3.5419e-09 deg/d
Q 3.770377433900705 5.0899e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1998-10-14  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:29  

Additional Information
 Earth MOID = 1.57286 au 
 Jupiter MOID = 1.68116 au 
 T_jup = 3.104 
[ 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 14.9   n/a MPO450146  

266781 (2009 SR237)          Discovered 2009-Sep-16 by CSS at Catalina
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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