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9331 Fannyhensel (1990 QM9)
Classification: Main-belt Asteroid          SPK-ID: 2009331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05474853062408688 3.4421e-08  
a 2.747557292891754 1.5079e-08 au
q 2.597132568300436 9.4666e-08 au
i 4.435751932985061 5.7915e-06 deg
node 13.62876826527047 4.9824e-05 deg
peri 284.2401957343403 7.3396e-05 deg
M 142.7372313052328 5.4222e-05 deg
tp 2457940.941486735672
(2017-Jul-06.44148674)
0.00025072 TDB
period 1663.483749852262
4.55
1.3695e-05
3.749e-08
d
yr
n .2164132953099016 1.7816e-09 deg/d
Q 2.897982017483072 1.5905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1325  
   data-arc span      10440 days (28.58 yr)  
   first obs. used      1990-08-16  
   last obs. used      2019-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54451  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:00:53  

Additional Information
 Earth MOID = 1.58531 au 
 Jupiter MOID = 2.21605 au 
 T_jup = 3.341 
[ 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 14.3   n/a MPO365361  
diameter diameter 3.605 km 0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9331 Fannyhensel           Discovered 1990 Aug. 16 by E. W. Elst at the European Southern Observatory.
Fanny Hensel (1805-1847) was the sister of Felix Mendelssohn-Bartholdy and wife of painter Wilhelm Hensel. She was an accomplished composer of lieder, chamber music and choral pieces. She also composed an oratorio.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1990 QM9 = 1997 CA6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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