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3753 Cruithne (1986 TO)
Classification: Aten [NEO]          SPK-ID: 2003753
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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 123 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .514892941474893 4.2357e-07  
a .9977094965163418 2.1341e-09 au
q .4839959191176081 4.2253e-07 au
i 19.80646632894437 1.033e-05 deg
node 126.2396964601011 7.7484e-05 deg
peri 43.82142422643551 7.8652e-05 deg
M 221.8641754479191 3.2213e-05 deg
tp 2457740.171696892304
3.27e-05 JED
period 364.002683911095
n .9890036967088061 3.1733e-09 deg/d
Q 1.511423073915075 3.233e-09 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      15334 days (41.98 yr)  
   first obs. used      1973-10-17  
   last obs. used      2015-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52955  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:02:29  

Additional Information
 Earth MOID = .0711363 au 
 Jupiter MOID = 3.51612 au 
 T_jup = 5.922 
[ 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 15.6 mag n/a MPO244211  
rotation period rot_per 27.30990 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Erikson, A.; Mottola, S.; Lagerros, J.S.V.; Lindgren, M.; et al. (2000) Icarus 147, 487-497.]
[Larsen, J.A.; McMillan, R.S.; Bressie, T.H.; Scotti, J.V. (2014) Minor Planet Bul. 41, 68-69.]
SMASSII spectral type spec_B Q   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3753 Cruithne           Discovered 1986 Oct. 10 by J. D. Waldron at Siding Spring.
Named for the most common term used by the Irish for the Picts---one of the ancient peoples of Scotland. `Cruithne' was the eponymous ancestor of the Picts, and it was his seven sons who gave their names to the seven divisions of the Pictish Kingdom.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980411/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1986 TO = 1983 UH 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-Apr-30 13:07 UT
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