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6042 Cheshirecat (1990 WW2)
Classification: Mars-crossing Asteroid          SPK-ID: 2006042
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4571151606329461 5.7813e-08  
a 3.03851312991467 2.2452e-08 AU
q 1.64956271244841 1.7868e-07 AU
i 15.88679351723188 7.7917e-06 deg
node 88.60679856444982 2.7452e-05 deg
peri 286.3467540364791 2.8273e-05 deg
M 208.5394749214418 8.5622e-06 deg
tp 2457814.430007717880
(2017-Mar-01.93000772)
5.1608e-05 JED
period 1934.595186610232
5.30
2.1442e-05
5.87e-08
d
yr
n .1860854417976644 2.0625e-09 deg/d
Q 4.427463547380929 3.2715e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      809  
   data-arc span      12738 days (34.87 yr)  
   first obs. used      1979-08-14  
   last obs. used      2014-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56109  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:05:56  

Additional Information
 Earth MOID = .732899 AU 
 T_jup = 3.020 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8 mag n/a MPO256908  
rotation period rot_per 10.050 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Folberth, J.; Casimir, S.; Dou, Y.; Evans, D; et al. (2012) Minor Planet Bul. 39, 51-55.]
[Stephens, R.D. (2012) Minor Planet Bul. 39, 80-82.]

6042 Cheshirecat           Discovered 1990 Nov. 23 by A. Natori and T. Urata at the JCPM Yakiimo Station.
Named for a cat appearing in Lewis Carroll's famous fairy tale Alice in Wonderland . Its unique characteristic is its laughing voice that lingers after the cat fades away. Name and citation proposed by T. Urata.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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