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73704 Hladiuk (1991 TW15)
Classification: Outer Main-belt Asteroid          SPK-ID: 2073704
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04738071772002173 1.2466e-07  
a 3.239851242535144 6.1649e-08 AU
q 3.086344765357724 4.1988e-07 AU
i 12.12436683672547 1.6164e-05 deg
node 51.04825551265915 4.9084e-05 deg
peri 27.10140056262174 0.00016182 deg
M 311.0607984042001 0.00015861 deg
tp 2457290.061228905698
0.00094037 JED
period 2130.031529059468
n .1690115827341583 4.824e-09 deg/d
Q 3.393357719712563 6.457e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      8480 days (23.22 yr)  
   first obs. used      1991-10-06  
   last obs. used      2014-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60395  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 15:56:18  

Additional Information
 Earth MOID = 2.10496 AU 
 T_jup = 3.147 
[ 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 14.7 mag n/a MPO309712  

73704 Hladiuk           Discovered 1991 Oct. 6 by A. Lowe on plates taken at Palomar.
Donald W. Hladiuk (b. 1957) is a professional geologist in Calgary, Alberta. For over 20 years, he has presented sky highlights on a local radio morning show. He has led numerous astronomical expeditions with the Calgary chapter of the Royal Astronomical Society of Canada, of which he has twice been president.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2015-Mar-30 10:38 UT
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