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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 195 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .514874505056729 6.7583e-08  
a .9977198174750846 1.169e-09 au
q .4840193202673104 6.7408e-08 au
i 19.80636595267685 2.9959e-06 deg
node 126.2243674120115 9.5121e-06 deg
peri 43.83475857108109 1.2129e-05 deg
M 4.282650884849965 1.6919e-05 deg
tp 2459196.169664983982
(2020-Dec-12.66966498)
1.7106e-05 TDB
period 364.0083321479994
1.00
6.3977e-07
1.752e-09
d
yr
n .9889883505568503 1.7382e-09 deg/d
Q 1.511420314682859 1.771e-09 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      17198 days (47.09 yr)  
   first obs. used      1973-10-17  
   last obs. used      2020-11-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40077  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:30:30  

Additional Information
 Earth MOID = .0703812 au 
 Jupiter MOID = 3.51087 au 
 T_jup = 5.922 
[ show covariance matrix ]

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 15.53   n/a E2021B69  
diameter diameter 2.071 km 0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)  
rotation period rot_per 27.30990 h n/a LCDB (Rev. 2020-October); 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] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)  
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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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