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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08325526988295004 3.5542e-08  
a 3.07041840982488 1.832e-08 au
q 2.814789896461332 1.1567e-07 au
i 2.892855153348105 3.6087e-06 deg
node 288.2375379686446 8.8664e-05 deg
peri 29.67331330151499 9.2422e-05 deg
M 328.8835577919843 2.7016e-05 deg
tp 2459170.356512523714
(2020-Nov-16.85651252)
0.00014777 TDB
period 1965.145761194548
5.38
1.7588e-05
4.815e-08
d
yr
n .1831925178828301 1.6395e-09 deg/d
Q 3.326046923188429 1.9845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1382  
   data-arc span      14495 days (39.69 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:59:27  

Additional Information
 Earth MOID = 1.80184 au 
 Jupiter MOID = 1.90965 au 
 T_jup = 3.224 
[ 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 13.8   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

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