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 ]  
85200 Johnhault (1991 TG15)
Classification: Main-belt Asteroid          SPK-ID: 2085200
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1764833208309744 4.2064e-08  
a 2.563587192052612 1.9125e-08 au
q 2.111156811159414 1.09e-07 au
i 5.263627058894194 4.3064e-06 deg
node 37.94824730942909 7.1392e-05 deg
peri 25.11801466477794 7.4002e-05 deg
M 235.6964485894108 2.3432e-05 deg
tp 2459118.168337354369
(2020-Sep-25.66833735)
0.00010045 TDB
period 1499.237948817745
4.10
1.6777e-05
4.593e-08
d
yr
n .2401219901643268 2.6871e-09 deg/d
Q 3.01601757294581 2.25e-08 au
  Orbit Determination Parameters
   # obs. used (total)      373  
   data-arc span      10220 days (27.98 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59282  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:09:24  

Additional Information
 Earth MOID = 1.12517 au 
 Jupiter MOID = 2.31875 au 
 T_jup = 3.406 
[ 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 16.1   n/a MPO439613  

85200 Johnhault           Discovered 1991 Oct. 6 by A. Lowe on plates taken at Palomar.
John A. Hault (b. 1946) was curator of Edmonton's Queen Elizabeth Planetarium when, in the mid-1970s, he recognized the need for a major science center. He played the major role in developing the project and served as the first director of the Edmonton Space Sciences Centre (now the Odyssium) when it opened in 1984.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

Alternate Designations
 1991 TG15 = 1999 TU311 = 2003 QZ56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin