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11303 (1993 CA1)
Classification: Main-belt Asteroid          SPK-ID: 2011303
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1064772425439988 4.0784e-08  
a 2.649395143876243 1.1982e-08 au
q 2.36729485454684 1.0613e-07 au
i 13.70074363834158 4.3808e-06 deg
node 321.3435327314077 1.6338e-05 deg
peri 186.5977779043482 2.4332e-05 deg
M 115.026099710404 1.8348e-05 deg
tp 2458497.216810969756
(2019-Jan-13.71681097)
7.9548e-05 TDB
period 1575.137716631628
4.31
1.0686e-05
2.926e-08
d
yr
n .2285514442317122 1.5505e-09 deg/d
Q 2.931495433205646 1.3258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1859  
   data-arc span      25808 days (70.66 yr)  
   first obs. used      1950-03-15  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43034  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:45:26  

Additional Information
 Earth MOID = 1.37975 au 
 Jupiter MOID = 2.09319 au 
 T_jup = 3.343 
[ 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 MPO473919  
diameter diameter 6.115 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.61794 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.248   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11303 (1993 CA1)          Discovered 1993-Feb-14 by Hioki, T., Hayakawa, S. at Okutama
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 CA1 = 1950 EH = 1980 BK5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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