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

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1180289194409754 3.2937e-08  
a 2.278215055812459 6.1225e-09 au
q 2.009319794520753 7.7004e-08 au
i 3.950096021463405 3.6101e-06 deg
node 66.77573739888635 5.1439e-05 deg
peri 71.57959939273506 5.4394e-05 deg
M 280.56474208015 1.7656e-05 deg
tp 2459477.641340023567
(2021-Sep-20.14134002)
6.1811e-05 TDB
period 1256.002498401311
3.44
5.0631e-06
1.386e-08
d
yr
n .2866236336776575 1.1554e-09 deg/d
Q 2.547110317104164 6.8451e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2040  
   data-arc span      11478 days (31.43 yr)  
   first obs. used      1989-10-03  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48316  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:17:20  

Additional Information
 Earth MOID = 1.02685 au 
 Jupiter MOID = 2.47221 au 
 T_jup = 3.595 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.59   n/a MPCxxxxx  
rotation period rot_per 4.168 h n/a LCDB (Rev. 2020-October); 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. (2015) 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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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