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11306 Akesson (1993 FF18)
Classification: Main-belt Asteroid          SPK-ID: 2011306
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1435333436769596 3.1643e-08  
a 3.068296328654619 1.3748e-08 au
q 2.627893497211082 1.0048e-07 au
i 5.873749672804871 3.7002e-06 deg
node 113.6914721025748 3.7739e-05 deg
peri 159.7711977393758 4.0363e-05 deg
M 23.51453835197038 1.3708e-05 deg
tp 2459268.273338951444
(2021-Feb-22.77333895)
7.4783e-05 TDB
period 1963.108834480357
5.37
1.3195e-05
3.613e-08
d
yr
n .1833825989048099 1.2326e-09 deg/d
Q 3.508699160098156 1.5722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1750  
   data-arc span      10366 days (28.38 yr)  
   first obs. used      1993-03-17  
   last obs. used      2021-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51197  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 13:10:56  

Additional Information
 Earth MOID = 1.61238 au 
 Jupiter MOID = 1.6145 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457384.5 (2015-Dec-28.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1414919562860284 3.1683e-08  
q 2.633050452905407 1.0037e-07 au
tp 2457304.949759861656
(2015-Oct-09.44975986)
7.7154e-05 TDB
node 113.7090472514452 3.7742e-05 deg
peri 159.4710297982603 4.0438e-05 deg
i 5.873182141921873 3.6998e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1750  
   data-arc span      10366 days (28.38 yr)  
   first obs. used      1993-03-17  
   last obs. used      2021-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51197  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 13:10:56  

Additional Information
 Jupiter MOID = 1.6145 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.003841213230908E-15 -3.158448803057649E-15 1.487043413947563E-13 -2.468739358797579E-15 4.238991590241272E-14 -5.313093125615658E-16
q -3.158448803057649E-15 1.007340074895119E-14 -6.248196768285226E-13 1.266995016909554E-14 -1.669373701906086E-13 2.048050469984319E-15
tp 1.487043413947563E-13 -6.248196768285226E-13 5.952813143131862E-9 -8.504828115444816E-12 1.143858319205625E-9 1.091413489964407E-12
node -2.468739358797579E-15 1.266995016909554E-14 -8.504828115444816E-12 1.424426586957166E-9 -1.417810695790407E-9 5.947449103878477E-12
peri 4.238991590241272E-14 -1.669373701906086E-13 1.143858319205625E-9 -1.417810695790407E-9 1.635238549654296E-9 -5.700211746873118E-12
i -5.313093125615658E-16 2.048050469984319E-15 1.091413489964407E-12 5.947449103878477E-12 -5.700211746873118E-12 1.368868367062313E-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 13.67   n/a MPO636237  
diameter diameter 8.715 km 0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.093   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11306 Åkesson           Discovered 1993 Mar. 17 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Sonja Åkesson (1926-1977), born in Buttle on Gotland, was well known for her characteristic poetic style describing the struggles of daily life. She was also a songwriter.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100726/MPCPages.arcLast Updated: 2010-07-28

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