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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04520104784707806 2.8195e-08  
a 3.168013711890156 1.6337e-08 au
q 3.02481617251881 8.7463e-08 au
i 10.2549521049944 3.5201e-06 deg
node 144.4680312245474 2.2076e-05 deg
peri 327.1727807134121 5.277e-05 deg
M 128.0348623492574 4.7636e-05 deg
tp 2458468.004866036226
(2018-Dec-15.50486604)
0.00027248 TDB
period 2059.581612292709
5.64
1.5931e-05
4.362e-08
d
yr
n .1747927821123101 1.3521e-09 deg/d
Q 3.311211251261502 1.7075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2147  
   data-arc span      11661 days (31.93 yr)  
   first obs. used      1988-08-16  
   last obs. used      2020-07-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48819  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:53:58  

Additional Information
 Earth MOID = 2.04605 au 
 Jupiter MOID = 1.73392 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 13.01   n/a MPCxxxxx  
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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