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3753 Cruithne (1986 TO)
Classification: Aten [NEO]          SPK-ID: 2003753
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 166 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5148440884986424 4.8662e-07  
a .9976970057262946 1.9479e-09 au
q .4840386002153157 4.8519e-07 au
i 19.80627828118542 1.1385e-05 deg
node 126.2251101737282 8.7744e-05 deg
peri 43.83756704591801 8.7585e-05 deg
M 166.4702040645676 3.605e-05 deg
tp 2458832.182046840424
3.649e-05 TDB
period 363.9958482536917
n .9890222696965854 2.8964e-09 deg/d
Q 1.511355411237273 2.9507e-09 au
  Orbit Determination Parameters
   # obs. used (total)      794  
   data-arc span      16824 days (46.06 yr)  
   first obs. used      1973-10-17  
   last obs. used      2019-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 08:58:25  

Additional Information
 Earth MOID = .071205 au 
 Jupiter MOID = 3.51182 au 
 T_jup = 5.922 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO244211  
diameter diameter 2.071 km 0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (  
rotation period rot_per 27.30990 h n/a LCDB (Rev. 2019-August); 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 Bull. 41, 68-69.]
geometric albedo albedo 0.365   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (  
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

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Alternate Designations
 1986 TO = 1983 UH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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