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11944 Shaftesbury (1993 OK9)
Classification: Main-belt Asteroid          SPK-ID: 2011944
[ 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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01864148139651649 3.1884e-08  
a 2.887240729386469 1.37e-08 au
q 2.833418285042347 9.0516e-08 au
i 2.977499607628297 3.4762e-06 deg
node 128.9399621081886 6.7761e-05 deg
peri 135.4705227838803 0.00011762 deg
M 201.764626430179 9.69e-05 deg
tp 2459788.133167456541
(2022-Jul-27.63316746)		 0.00048261 TDB
period 1791.937756314898
4.91		 1.2754e-05
3.492e-08		 d
yr
n .2008998352377687 1.4299e-09 deg/d
Q 2.941063173730592 1.3955e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2460  
   data-arc span      24185 days (66.21 yr)  
   first obs. used      1954-08-04  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:56:14  

Additional Information
 Earth MOID = 1.81837 au 
 Jupiter MOID = 2.04868 au 
 T_jup = 3.290 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456647.5 (2013-Dec-21.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02145953308740586 3.1861e-08  
q 2.823831431592879 9.0792e-08 au
tp 2456202.694927022522
(2012-Oct-02.19492702)		 0.00041914 TDB
node 128.999337060011 6.7667e-05 deg
peri 134.9456109722414 0.00010758 deg
i 2.978706577232151 3.4807e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2460  
   data-arc span      24185 days (66.21 yr)  
   first obs. used      1954-08-04  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:56:14  

Additional Information
 Jupiter MOID = 2.04868 au 
 T_jup = 3.290 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.015125239678496E-15 -2.862280710420671E-15 -1.173731748602988E-13 8.524867120970869E-16 -1.793414597425025E-14 1.126727707964565E-16
q -2.862280710420671E-15 8.243111968428485E-15 3.668564861575211E-13 -2.225491267448399E-15 6.53180027960105E-14 -2.26716945754553E-16
tp -1.173731748602988E-13 3.668564861575211E-13 1.756815147600623E-7 1.154840664435782E-11 3.507175731540229E-8 -2.847885058136189E-13
node 8.524867120970869E-16 -2.225491267448399E-15 1.154840664435782E-11 4.578884688383355E-9 -4.570077761591422E-9 -5.404320558850954E-12
peri -1.793414597425025E-14 6.53180027960105E-14 3.507175731540229E-8 -4.570077761591422E-9 1.157411942623549E-8 5.346396392096392E-12
i 1.126727707964565E-16 -2.26716945754553E-16 -2.847885058136189E-13 -5.404320558850954E-12 5.346396392096392E-12 1.211504711912864E-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 13.3   n/a MPO358746  
diameter diameter 6.906 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.213   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11944 Shaftesbury           Discovered 1993 July 20 by E. W. Elst at the European Southern Observatory.
Anthony Ashley Cooper Shaftesbury (1671-1713) was an English politician and philosopher. Educated by philosopher John Locke, he soon developed his own school of thought. His philosophy was also influenced by the "Cambridge Platonists", who stressed the existence of a natural moral sense.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1993 OK9 = 1989 TZ2 = 1993 ON13 
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