Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
JPL Small-Body Database Browser
Search: [ help ]  
4440 Tchantches (1984 YV)
Classification: Inner Main-belt Asteroid          SPK-ID: 2004440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07686686792984236 1.8821e-08  
a 1.921494840467074 5.4703e-09 au
q 1.773795550337018 3.5438e-08 au
i 21.35054621226395 5.4716e-07 deg
node 283.3235056541833 1.6762e-06 deg
peri 225.0357722967533 1.3931e-05 deg
M 144.6119841005072 1.6542e-05 deg
tp 2458809.695959849822
4.3974e-05 TDB
period 972.8754869740474
n .3700370754737738 1.5802e-09 deg/d
Q 2.06919413059713 5.8908e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2091  
   data-arc span      13074 days (35.79 yr)  
   first obs. used      1984-12-23  
   last obs. used      2020-10-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36686  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:20:53  

Additional Information
 Earth MOID = .816763 au 
 Jupiter MOID = 3.07272 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 13.79   n/a E2021B10  
diameter diameter 2.093 km 0.586 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 2.7883 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site,]
[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] (  

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 ]
FirstGov 2021-Apr-19 23:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin