Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1179495417194034 3.8685e-08  
a 2.278095789206162 7.8256e-09 au
q 2.009395434876393 8.8073e-08 au
i 3.950149503952426 3.9264e-06 deg
node 66.77537831978043 6.6548e-05 deg
peri 71.62165097886742 6.9207e-05 deg
M 223.182888163423 1.8042e-05 deg
tp 2459477.803167480037
(2021-Sep-20.30316748)
6.3232e-05 TDB
period 1255.903870402242
3.44
6.4713e-06
1.772e-08
d
yr
n .286646142657956 1.477e-09 deg/d
Q 2.546796143535932 8.7486e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1524  
   data-arc span      10807 days (29.59 yr)  
   first obs. used      1989-10-03  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52403  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:51:45  

Additional Information
 Earth MOID = 1.02702 au 
 Jupiter MOID = 2.47319 au 
 T_jup = 3.595 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456071.5 (2012-May-24.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1169430677844521 3.8578e-08  
q 2.0125603619746 8.7791e-08 au
tp 2455708.339567407746
(2011-May-26.83956741)
6.4361e-05 TDB
node 66.82482608791319 6.6451e-05 deg
peri 71.57311706885717 6.918e-05 deg
i 3.952754993260402 3.9287e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1524  
   data-arc span      10807 days (29.59 yr)  
   first obs. used      1989-10-03  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52403  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:51:45  

Additional Information
 Jupiter MOID = 2.47319 au 
 T_jup = 3.595 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.488288583080452E-15 -3.376336418235176E-15 5.863362809350445E-13 -7.479507025288532E-15 1.940607756448874E-13 -3.550736615911862E-16
q -3.376336418235176E-15 7.707190264242655E-15 -1.411546014020656E-12 1.734685865637159E-14 -4.611135305015258E-13 8.865534616759791E-16
tp 5.863362809350445E-13 -1.411546014020656E-12 4.14234620817436E-9 -2.441822310184203E-11 1.259036656562282E-9 -7.290169125276865E-13
node -7.479507025288532E-15 1.734685865637159E-14 -2.441822310184203E-11 4.415774766409008E-9 -4.412031332714575E-9 -4.20211786033991E-11
peri 1.940607756448874E-13 -4.611135305015258E-13 1.259036656562282E-9 -4.412031332714575E-9 4.785876005441118E-9 4.171524028734638E-11
i -3.550736615911862E-16 8.865534616759791E-16 -7.290169125276865E-13 -4.20211786033991E-11 4.171524028734638E-11 1.543499397105442E-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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-02 16:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin