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227301 (2005 SU261)
Classification: Main-belt Asteroid          SPK-ID: 2227301
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06525475103354805 4.7114e-08  
a 2.396119623265047 1.4527e-08 au
q 2.239761433802287 1.1577e-07 au
i 3.532394971722883 3.3186e-06 deg
node 109.7722994095499 9.2915e-05 deg
peri 308.2715128625325 0.00010066 deg
M 348.5492301739387 3.6924e-05 deg
tp 2459243.591672927897
(2021-Jan-29.09167293)
0.00013882 TDB
period 1354.756273131626
3.71
1.232e-05
3.373e-08
d
yr
n .2657304543553297 2.4165e-09 deg/d
Q 2.552477812727806 1.5475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      320  
   data-arc span      6586 days (18.03 yr)  
   first obs. used      2002-12-31  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 13:11:26  

Additional Information
 Earth MOID = 1.25325 au 
 Jupiter MOID = 2.63407 au 
 T_jup = 3.523 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO437077  

227301 (2005 SU261)          Discovered 2005-Sep-22 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2005 SU261 = 2007 EZ27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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