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118340 (1999 CL20)
Classification: Main-belt Asteroid          SPK-ID: 2118340
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1479842846098152 3.171e-08  
a 2.37991348821642 9.2538e-09 au
q 2.027723693229464 7.6392e-08 au
i 5.691796620653177 4.733e-06 deg
node 41.92432746233763 3.6169e-05 deg
peri 85.36185450445683 3.9717e-05 deg
M 291.6719100246664 1.737e-05 deg
tp 2459255.028819012337
(2021-Feb-09.52881901)
6.5373e-05 TDB
period 1341.035215202415
3.67
7.8215e-06
2.141e-08
d
yr
n .2684493262510351 1.5657e-09 deg/d
Q 2.732103283203377 1.0623e-08 au
  Orbit Determination Parameters
   # obs. used (total)      840  
   data-arc span      7951 days (21.77 yr)  
   first obs. used      1999-01-19  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59233  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:12:14  

Additional Information
 Earth MOID = 1.05226 au 
 Jupiter MOID = 2.33575 au 
 T_jup = 3.517 
[ 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 15.7   n/a MPO296885  
diameter diameter 1.630 km 0.466 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.383   0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118340 (1999 CL20)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1999 CL20 = 2001 SP35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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