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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1067531546851818 1.8641e-08  
a 2.65009254426447 1.1949e-08 au
q 2.367186804956559 4.897e-08 au
i 13.71021571407682 7.9036e-07 deg
node 321.321707631621 2.1885e-06 deg
peri 187.0314747882648 5.5347e-06 deg
M 160.2204795841655 6.552e-06 deg
tp 2458499.197295260337
(2019-Jan-15.69729526)
2.5337e-05 TDB
period 1575.759692902768
4.31
1.0658e-05
2.918e-08
d
yr
n .2284612315072167 1.5452e-09 deg/d
Q 2.932998283572382 1.3225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1906  
   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      .43165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 22:34:35  

Additional Information
 Earth MOID = 1.37951 au 
 Jupiter MOID = 2.09089 au 
 T_jup = 3.342 
[ 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 12.96   n/a E2021B10  
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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