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20333 Johannhuth (1998 HH51)
Classification: Main-belt Asteroid          SPK-ID: 2020333
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170764127997028 5.2394e-08  
a 2.278826279758149 1.1904e-08 au
q 2.012029473530373 1.1713e-07 au
i 3.951530841061514 5.6364e-06 deg
node 66.79716190764888 9.2784e-05 deg
peri 71.32977307548643 9.7219e-05 deg
M 182.4127315801402 2.9394e-05 deg
tp 2458220.332839519877
(2018-Apr-11.83283952)
0.00010277 JED
period 1256.507993014445
3.44
9.8457e-06
2.696e-08
d
yr
n .2865083246596278 2.245e-09 deg/d
Q 2.545623085985925 1.3298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1107  
   data-arc span      9390 days (25.71 yr)  
   first obs. used      1989-10-03  
   last obs. used      2015-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51327  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 14:05:34  

Additional Information
 Earth MOID = 1.02845 au 
 Jupiter MOID = 2.47984 au 
 T_jup = 3.595 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5 mag n/a MPO337430  
rotation period rot_per 4.1675 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

20333 Johannhuth           Discovered 1998 Apr. 25 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Johann Sigismund Huth (1763-1818) was a founder of astronomy at Kharkiv University, Russia (now Ukraine). He was a professor of this university during 1808-1811 and director of Tartu observatory (Estonia) from 1811 to 1818. Huth discovered four comets and estimated the diameter of (3) Juno by the eclipse method.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

Alternate Designations
 1998 HH51 = 1989 TN13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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