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JPL Small-Body Database Browser
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11836 Eileen (1986 CB)
Classification: Mars-crossing Asteroid          SPK-ID: 2011836
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3521133105323909 4.5943e-08  
a 2.345594578616377 8.0236e-09 au
q 1.519679506372936 1.0886e-07 au
i 22.46319491072425 3.8204e-06 deg
node 131.7523304517341 1.4888e-05 deg
peri 289.7296294493783 1.562e-05 deg
M 134.0747308900248 5.5831e-06 deg
tp 2458111.822567090898
(2017-Dec-24.32256709)
1.9921e-05 TDB
period 1312.132977477904
3.59
6.7326e-06
1.843e-08
d
yr
n .2743624359567339 1.4078e-09 deg/d
Q 3.171509650859818 1.0849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1375  
   data-arc span      12149 days (33.26 yr)  
   first obs. used      1986-02-05  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46462  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:58:00  

Additional Information
 Earth MOID = .666714 au 
 Jupiter MOID = 2.47424 au 
 T_jup = 3.380 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO435812  
rotation period rot_per 8.810 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/asteroid/lightcurves.htm]

11836 Eileen           Discovered 1986 Feb. 5 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Eileen Collins (b. 1956), astronaut, became in Feb. 1995 the first woman to pilot a shuttle mission. In July 1999 she became NASA's first female shuttle commander. Her five-day mission launched the Chandra X-ray Telescope into orbit.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1986 CB = 1988 PJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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