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13178 Catalan (1996 HF18)
Classification: Main-belt Asteroid          SPK-ID: 2013178
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 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1488161513690377 5.4017e-08  
a 3.131239230067967 3.5099e-08 AU
q 2.665260258833503 1.7227e-07 AU
i 3.424909185864721 6.0593e-06 deg
node 224.0777871420724 0.00010165 deg
peri 252.039678516381 0.00010432 deg
M 252.9260934851632 2.5556e-05 deg
tp 2457802.441031522385
0.00014946 JED
period 2023.824276160424
n .1778810562955534 2.9909e-09 deg/d
Q 3.597218201302431 4.0322e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      813  
   data-arc span      13799 days (37.78 yr)  
   first obs. used      1977-12-07  
   last obs. used      2015-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53717  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:48:53  

Additional Information
 Earth MOID = 1.68473 AU 
 T_jup = 3.193 
[ 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 13.8 mag n/a MPO263467  
rotation period rot_per 12.9257 h n/a LCDB (Rev. 2015-July); 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., in press.]

13178 Catalan           Discovered 1996 Apr. 18 by E. W. Elst at the European Southern Observatory.
Eugène Charles Catalan (1814-1894) was a French-Belgian mathematician, known in particular for the "Catalan numbers". His left-wing convictions caused him to be expelled from the Ecole Polytechnique in Paris. In 1865 the University of Liège honored him with the chair of Analysis.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100330/MPCPages.arcLast Updated: 2010-04-05

[ show close-approach data ]
Alternate Designations
 1996 HF18 = 1977 XJ3 = 1993 UR9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2015-Oct-07 00:17 UT
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