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
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
6042 Cheshirecat (1990 WW2)
Classification: Mars-crossing Asteroid          SPK-ID: 2006042
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4572955887065805 3.9473e-08  
a 3.038043452902271 1.7343e-08 au
q 1.648759583591155 1.1947e-07 au
i 15.88615473821103 4.2872e-06 deg
node 88.61011590792172 1.8091e-05 deg
peri 286.1775136323906 1.8359e-05 deg
M 220.8615212691602 9.6376e-06 deg
tp 2459748.039505065589
(2022-Jun-17.53950507)
5.7145e-05 TDB
period 1934.146644970923
5.30
1.6562e-05
4.534e-08
d
yr
n .1861285962654668 1.5938e-09 deg/d
Q 4.427327322213388 2.5274e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      14925 days (40.86 yr)  
   first obs. used      1979-08-14  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .521  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:38:52  

Additional Information
 Earth MOID = .732421 au 
 Jupiter MOID = 1.54496 au 
 T_jup = 3.020 
[ 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 12.9   n/a MPO337304  
rotation period rot_per 10.050 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Folberth, J.; Casimir, S.; Dou, Y.; Evans, D; et al. (2012) Minor Planet Bull. 39, 51-55.]
[Stephens, R.D. (2012) Minor Planet Bull. 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1935-May-07 06:24 00:03 Jupiter 1.76042352626102 1.76042118240142 1.76042587014384 2.72988539422344 2.54754396346848 2427929.766868444 2.68720830759427 354.291918335426 35.371657429242 74.5703528347817 2422438.65220207 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:56 2020-Nov-13 03:38
1993-Jun-29 15:52 < 00:01 Jupiter 1.61658186840317 1.61658095011328 1.61658278669296 3.14081883546115 2.96931390814175 2449168.161414947 0.808946274884392 66.5706877179688 44.2755283014708 -86.4057171144301 1318234.05702463 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:56 2020-Nov-13 03:38
2041-Sep-07 06:06 < 00:01 Jupiter 1.54714136096608 1.54714060234677 1.54714211958584 2.92327398403579 2.72957489478446 2466769.753928648 0.896546994914901 75.7440567977077 31.4177597835476 73.5648190458925 2140116.02191842 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:56 2020-Nov-13 03:38
2090-Mar-07 11:58 00:03 Jupiter 1.97981418402079 1.97981166451719 1.97981670358201 3.48312589394692 3.35805113030771 2484482.998731596 2.6482235728352 560.32715597717 14.7111330054431 78.2945983704905 2760757.82554845 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:56 2020-Nov-13 03:38
2100-Jan-09 20:55 00:02 Jupiter 1.85516953196703 1.85516624148456 1.85517282245498 4.11668235019912 4.00423840496877 2488078.371429604 2.3487407551536 236.653450003395 47.6232586724466 -48.8966841867032 1482749.25034603 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:56 2020-Nov-13 03:38
2148-Mar-08 19:51 00:02 Jupiter 1.48535689145058 1.48535582111007 1.48535796179717 3.40292213552347 3.23100326401644 2505668.327105900 2.47132016649116 248.9771421508 38.3939975029543 -83.8957848425145 1926254.3712422 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:56 2020-Nov-13 03:38
2196-May-20 11:44 00:05 Jupiter 1.65274806190255 1.65274373109826 1.652752392765 3.29744638363741 3.13817873963088 2523272.988675334 4.87977042336492 546.11824142325 16.5316944932902 67.3809961096138 2987560.22791588 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:56 2020-Nov-13 03:38
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-05 16:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin