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11299 Annafreud (1992 SA22)
Classification: Main-belt Asteroid          SPK-ID: 2011299
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04882725242933611 3.1945e-08  
a 2.735114027834826 1.1605e-08 au
q 2.601565924774717 8.6156e-08 au
i 4.405882824768908 4.6023e-06 deg
node 29.46546539673086 4.7031e-05 deg
peri 239.6887504953093 7.0351e-05 deg
M 121.4091456461507 5.1164e-05 deg
tp 2458443.300799631808
(2018-Nov-20.80079963)
0.00023565 TDB
period 1652.196060395463
4.52
1.0516e-05
2.879e-08
d
yr
n .2178918160074972 1.3868e-09 deg/d
Q 2.868662130894935 1.2172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1878  
   data-arc span      10260 days (28.09 yr)  
   first obs. used      1992-09-22  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:00:28  

Additional Information
 Earth MOID = 1.58916 au 
 Jupiter MOID = 2.16443 au 
 T_jup = 3.346 
[ 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 13.8   n/a MPO435806  
diameter diameter 5.078 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.189   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11299 Annafreud           Discovered 1992 Sept. 22 by E. W. Elst at the European Southern Observatory.
Anna Freud (1895-1982), the youngest daughter of Sigmund Freud, escaped with her father in 1938 Austria and settled in London. In 1936 she published Das Ich und die Abwehrmechanismen. She is considered the founder of child psychoanalysis.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1992 SA22 = 1978 NC7 
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