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JPL Small-Body Database Browser
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11456 Cotto-Figueroa (1981 EK9)
Classification: Main-belt Asteroid          SPK-ID: 2011456
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08325525426590021 3.6128e-08  
a 3.070418410198053 1.8828e-08 au
q 2.814789944754313 1.1717e-07 au
i 2.892851115064603 3.7199e-06 deg
node 288.2374459193419 9.0319e-05 deg
peri 29.67338555639253 9.4164e-05 deg
M 328.8835735217549 2.7712e-05 deg
tp 2459170.356426689980
(2020-Nov-16.85642669)
0.00015161 TDB
period 1965.145761552807
5.38
1.8076e-05
4.949e-08
d
yr
n .1831925178494329 1.685e-09 deg/d
Q 3.326046875641793 2.0396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1290  
   data-arc span      13970 days (38.25 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55077  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:55:25  

Additional Information
 Earth MOID = 1.80184 au 
 Jupiter MOID = 1.90965 au 
 T_jup = 3.224 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456631.5 (2013-Dec-05.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08256231693342202 3.6311e-08  
q 2.812730215991142 1.1718e-07 au
tp 2457219.773431817357
(2015-Jul-16.27343182)
0.0001494 TDB
node 288.2869864571499 9.0454e-05 deg
peri 31.79656006644122 9.4335e-05 deg
i 2.891567969361151 3.7186e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1290  
   data-arc span      13970 days (38.25 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55077  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:55:25  

Additional Information
 Jupiter MOID = 1.90965 au 
 T_jup = 3.224 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.318484316145073E-15 -4.212437117466502E-15 8.664577809897279E-13 6.047782669889439E-15 1.661058259170533E-13 5.841502217519038E-17
q -4.212437117466502E-15 1.373193920080591E-14 -2.418442186833578E-12 -1.558303191225904E-14 -4.855786479848023E-13 2.189918418054571E-16
tp 8.664577809897279E-13 -2.418442186833578E-12 2.232029677091366E-8 6.301724078583609E-13 4.034210985071759E-9 2.367560152401025E-12
node 6.047782669889439E-15 -1.558303191225904E-14 6.301724078583609E-13 8.18190364434498E-9 -8.171095395946191E-9 -1.593173605940812E-12
peri 1.661058259170533E-13 -4.855786479848023E-13 4.034210985071759E-9 -8.171095395946191E-9 8.899176333039083E-9 2.022064004367035E-12
i 5.841502217519038E-17 2.189918418054571E-16 2.367560152401025E-12 -1.593173605940812E-12 2.022064004367035E-12 1.382782202462883E-11

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 13.8   n/a MPO395111  
diameter diameter 11.196 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11456 Cotto-Figueroa           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring.
Desiree Cotto-Figueroa (b. 1984) is a professor at the University of Puerto Rico, Humacao whose research includes shape and spin evolution of near-Earth asteroids in response to re-radiation of solar flux.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

[ show close-approach data ]
Alternate Designations
 1981 EK9 = 1998 KN48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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