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4440 Tchantches (1984 YV)
Classification: Inner Main-belt Asteroid          SPK-ID: 2004440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07690642153103112 4.7804e-08  
a 1.921020323986535 5.7899e-09 au
q 1.773281525180349 9.0629e-08 au
i 21.35244135600211 4.8406e-06 deg
node 283.3233299192387 1.1752e-05 deg
peri 224.821902379504 2.9869e-05 deg
M 70.81468996791099 2.8405e-05 deg
tp 2458809.199007305588
(2019-Nov-21.69900731)
7.6551e-05 TDB
period 972.5151292930242
2.66
4.3967e-06
1.204e-08
d
yr
n .3701741897441783 1.6736e-09 deg/d
Q 2.068759122792721 6.2352e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1888  
   data-arc span      12903 days (35.33 yr)  
   first obs. used      1984-12-23  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:07:52  

Additional Information
 Earth MOID = .816108 au 
 Jupiter MOID = 3.07338 au 
 T_jup = 3.837 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO502196  
diameter diameter 2.093 km 0.586 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.7883 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D.; Pravec, P.; Kusnirak, P.; Foote, C.; et al. (2006) Minor Planet Bull. 33, 34-35.]
[Warner, B.D.; Higgins, D. (2009) Minor Planet Bull. 36, 90.]
[Warner, B.D (2011) Minor Planet Bull. 38, 25-31.]
[Warner, Brian D. (2013) Minor Planet Bull. 40, 119-121.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 102-112.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 144-155.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 1.000   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4440 Tchantchès           Discovered 1984 Dec. 23 by F. Dossin at Haute Provence.
Named in honor of the folklore character Tchantchès (Walloon dialect for François), the typical Walloon hero of the region of the discoverer. Tchantchès is obstinate but has a great heart.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981208/MPCPages.arcLast Updated: 2009-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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