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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1179495713614098 3.7868e-08  
a 2.278095789905848 7.6434e-09 au
q 2.009395367966221 8.6172e-08 au
i 3.950154719513923 3.8799e-06 deg
node 66.77531015378058 6.4832e-05 deg
peri 71.62170518907871 6.7437e-05 deg
M 223.1829032438532 1.7703e-05 deg
tp 2459477.803115090014
(2021-Sep-20.30311509)
6.2061e-05 TDB
period 1255.903870980842
3.44
6.3206e-06
1.73e-08
d
yr
n .2866461425258969 1.4426e-09 deg/d
Q 2.546796211845475 8.5449e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1598  
   data-arc span      11263 days (30.84 yr)  
   first obs. used      1989-10-03  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52223  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:34:30  

Additional Information
 Earth MOID = 1.02702 au 
 Jupiter MOID = 2.47319 au 
 T_jup = 3.595 
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Orbital Elements at Epoch 2456113.5 (2012-Jul-05.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1169625791208257 3.7762e-08  
q 2.012470574467476 8.5892e-08 au
tp 2455708.325660463877
(2011-May-26.82566046)
6.299e-05 TDB
node 66.82476958945431 6.4739e-05 deg
peri 71.56439921248896 6.741e-05 deg
i 3.952763938791044 3.8822e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1598  
   data-arc span      11263 days (30.84 yr)  
   first obs. used      1989-10-03  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52223  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:34:30  

Additional Information
 Jupiter MOID = 2.47319 au 
 T_jup = 3.595 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.425958811918124E-15 -3.233465688536565E-15 5.036370784736316E-13 -6.259096884862449E-15 1.68736486739906E-13 -3.443123960928841E-16
q -3.233465688536565E-15 7.377518960667371E-15 -1.216180565940856E-12 1.451446435509613E-14 -4.009797860335946E-13 8.584322735180461E-16
tp 5.036370784736316E-13 -1.216180565940856E-12 3.967683980927282E-9 -2.146761249687495E-11 1.202848213438628E-9 -6.972706621014433E-13
node -6.259096884862449E-15 1.451446435509613E-14 -2.146761249687495E-11 4.191107336328666E-9 -4.187014684973087E-9 -3.564619786290813E-11
peri 1.68736486739906E-13 -4.009797860335946E-13 1.202848213438628E-9 -4.187014684973087E-9 4.544100159748647E-9 3.536568250462178E-11
i -3.443123960928841E-16 8.584322735180461E-16 -6.972706621014433E-13 -3.564619786290813E-11 3.536568250462178E-11 1.507158397684458E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO435888  
rotation period rot_per 4.168 h n/a LCDB (Rev. 2019-August); 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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