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JPL Small-Body Database Browser
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13473 Hokema (1953 GJ)
Classification: Main-belt Asteroid          SPK-ID: 2013473
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1710166111720138 3.1467e-08  
a 2.254270915088065 7.842e-09 au
q 1.86875314252607 7.1648e-08 au
i 4.802933486175632 3.8964e-06 deg
node 172.983679762923 3.7522e-05 deg
peri 63.27256983595556 3.8913e-05 deg
M 160.608451387004 1.0651e-05 deg
tp 2458048.964486122140
(2017-Oct-22.46448612)
3.5702e-05 TDB
period 1236.253654657278
3.38
6.4509e-06
1.766e-08
d
yr
n .2912023747260845 1.5195e-09 deg/d
Q 2.639788687650061 9.1831e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1655  
   data-arc span      24044 days (65.83 yr)  
   first obs. used      1953-04-07  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53087  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:22:25  

Additional Information
 Earth MOID = .863368 au 
 Jupiter MOID = 2.36538 au 
 T_jup = 3.601 
[ 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 14.8   n/a MPO350910  
diameter diameter 2.529 km 0.541 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.399   0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13473 Hokema           Discovered 1953 Apr. 7 by K. Reinmuth at Heidelberg.
Peter Hokema (b. 1955) is a German violinist and maker of musical instruments. He developed several instruments that can be played without knowledge of scales and notation. His instruments are used successfully in music therapy for handicapped people. The name was suggested by A. Doppler.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000726/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1953 GJ = 1998 SP141 
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