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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .170857258683643 3.1208e-08  
a 2.254311187744733 7.7947e-09 au
q 1.869145757986801 7.1128e-08 au
i 4.802957658703117 3.8155e-06 deg
node 172.9697223502708 3.7393e-05 deg
peri 63.34194914824213 3.8745e-05 deg
M 277.0034920995789 1.0811e-05 deg
tp 2459285.520793849099
(2021-Mar-12.02079385)
3.7741e-05 TDB
period 1236.286783400378
3.38
6.412e-06
1.756e-08
d
yr
n .2911945713840184 1.5103e-09 deg/d
Q 2.639476617502665 9.1264e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1718  
   data-arc span      24419 days (66.86 yr)  
   first obs. used      1953-04-07  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:46:08  

Additional Information
 Earth MOID = .863803 au 
 Jupiter MOID = 2.36537 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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1995-May-02 23:47 < 00:01 Psych 0.0160333861965394 0.0160325865697479 0.0160341858359606 3.41135570994071 3.41135548873266 2449840.491268666 0.725379994426855 55.3830246020063 32.3797838135336 58.9375904934651 67187.2871142758 T 36 CATAB v2.0f-lin.ifort 2020-Nov-13 02:46:12 2020-Nov-13 02:46
2100-Apr-23 01:44 00:06 Psych 0.0477235119290479 0.0477189750975564 0.047728048830518 3.29355614693831 3.29355606996225 2488181.571909640 5.63037124328428 243.813388077881 32.2703272242744 22.3194022728927 88157.3427807393 T 36 CATAB v2.0f-lin.ifort 2020-Nov-13 02:46:12 2020-Nov-13 02:46

Alternate Designations
 1953 GJ = 1998 SP141 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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