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11653 (1997 CA20)
Classification: Main-belt Asteroid          SPK-ID: 2011653
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0453426759623173 2.821e-08  
a 3.168034654604184 1.6462e-08 au
q 3.024387485823075 8.7583e-08 au
i 10.25490313251693 3.528e-06 deg
node 144.4688380451025 2.2191e-05 deg
peri 327.2487663998188 5.2873e-05 deg
M 92.98214645752142 4.7728e-05 deg
tp 2458468.538283116024
(2018-Dec-16.03828312)
0.00027304 TDB
period 2059.602035168334
5.64
1.6053e-05
4.395e-08
d
yr
n .1747910488788077 1.3624e-09 deg/d
Q 3.311681823385293 1.7208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2132  
   data-arc span      11661 days (31.93 yr)  
   first obs. used      1988-08-16  
   last obs. used      2020-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48934  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:58:08  

Additional Information
 Earth MOID = 2.04568 au 
 Jupiter MOID = 1.73418 au 
 T_jup = 3.177 
[ 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 13.0   n/a MPO502258  
diameter diameter 13.125 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.9506 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 0.085   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11653 (1997 CA20)          Discovered 1997-Feb-12 by Kobayashi, T. at Oizumi
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 CA20 = 1988 QG = 1991 CX4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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