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JPL Small-Body Database Browser
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11136 Shirleymarinus (1996 XW12)
Classification: Main-belt Asteroid          SPK-ID: 2011136
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .151428582127353 3.388e-08  
a 2.372364906907715 7.959e-09 au
q 2.01312105276599 7.9744e-08 au
i 7.530962973802507 3.1681e-06 deg
node 87.94539807342569 2.6521e-05 deg
peri 266.8503330376928 2.8503e-05 deg
M 207.6057275893302 1.2382e-05 deg
tp 2459565.484856702320
(2021-Dec-16.98485670)
4.723e-05 TDB
period 1334.660057726649
3.65
6.7164e-06
1.839e-08
d
yr
n .269731605374626 1.3574e-09 deg/d
Q 2.73160876104944 9.1642e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1968  
   data-arc span      9598 days (26.28 yr)  
   first obs. used      1994-01-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49701  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:29:46  

Additional Information
 Earth MOID = 1.02517 au 
 Jupiter MOID = 2.72278 au 
 T_jup = 3.517 
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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 14.0   n/a MPO350891  
diameter diameter 3.808 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.403   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11136 Shirleymarinus           Discovered 1996 Dec. 8 by Spacewatch at Kitt Peak.
Shirley Marinus (b. 1921) served during a third of a century as secretary in the Lunar and Planetary Laboratory for the Polariscope program, the Imaging Photopolarimeters on Pioneers 10 and 11, the Space Science Series textbooks, and the Spacewatch survey of comets and minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1996 XW12 = 1994 BR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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