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6433 Enya (1978 WC)
Classification: Main-belt Asteroid          SPK-ID: 2006433
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2189134439356303 3.516e-08  
a 2.386266134744276 8.4733e-09 au
q 1.863880397040442 8.2844e-08 au
i 8.634485309707115 3.9198e-06 deg
node 87.31551737066103 2.4722e-05 deg
peri 317.3085931968414 2.6249e-05 deg
M 151.9500428999065 9.7412e-06 deg
tp 2458632.203384015289
(2019-May-28.70338402)
3.5234e-05 TDB
period 1346.408186862195
3.69
7.1713e-06
1.963e-08
d
yr
n .2673780533368414 1.4241e-09 deg/d
Q 2.908651872448111 1.0328e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1571  
   data-arc span      24988 days (68.41 yr)  
   first obs. used      1952-10-22  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4909  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 22:53:46  

Additional Information
 Earth MOID = .883338 au 
 Jupiter MOID = 2.50008 au 
 T_jup = 3.487 
[ 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 14.31   n/a E2021B10  
diameter diameter 7.416 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.400 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.081   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6433 Enya (1978 WC)          Discovered 1978-Nov-18 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1978 WC = 1952 UH = 1989 WZ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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