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8391 Kring (1993 HH3)
Classification: Main-belt Asteroid          SPK-ID: 2008391
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1139879544579454 4.7926e-08  
a 3.121078946423789 3.2804e-08 AU
q 2.765313541619182 1.569e-07 AU
i 3.012666590566645 5.906e-06 deg
node 123.9982262516802 0.00011732 deg
peri 324.4991070895921 0.00012133 deg
M 65.57312232454819 3.0794e-05 deg
tp 2456633.658111307548
0.0001713 JED
period 2013.981876227406
n .1787503672447899 2.8181e-09 deg/d
Q 3.476844351228396 3.6544e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1102  
   data-arc span      11958 days (32.74 yr)  
   first obs. used      1982-04-27  
   last obs. used      2015-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50156  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:23:01  

Additional Information
 Earth MOID = 1.78219 AU 
 T_jup = 3.204 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6 mag n/a MPO250292  

8391 Kring           Discovered 1993 Apr. 20 by Spacewatch at Kitt Peak.
David A. Kring (b. 1961) of the Lunar and Planetary Laboratory is a prolific geologist and meteoriticist who has studied the mineralogy of meteorites and the structure of terrestrial impact craters, particularly the Chicxulub crater, playing an important role in determining its origin and relationship to the K-T extinction event.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1993 HH3 = 1982 HT2 = 1990 SV4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2015-Mar-01 23:28 UT
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