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JPL Small-Body Database Browser
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11008 Ernst (1981 EO7)
Classification: Main-belt Asteroid          SPK-ID: 2011008
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052277878470009 3.6249e-08  
a 2.599206792299011 1.2451e-08 au
q 2.325698011388487 9.5089e-08 au
i 13.2903429269963 4.6092e-06 deg
node 199.6540115273212 1.4468e-05 deg
peri 210.831675725746 2.629e-05 deg
M 246.7539513265043 2.5112e-05 deg
tp 2459481.982197203989
(2021-Sep-24.48219720)
0.00010877 TDB
period 1530.592837664308
4.19
1.0998e-05
3.011e-08
d
yr
n .2352029822309646 1.69e-09 deg/d
Q 2.872715573209535 1.3761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1640  
   data-arc span      23869 days (65.35 yr)  
   first obs. used      1954-12-22  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50237  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:27:59  

Additional Information
 Earth MOID = 1.3431 au 
 Jupiter MOID = 2.56096 au 
 T_jup = 3.370 
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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 13.6   n/a MPO473916  
diameter diameter 5.001 km 0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.338   0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11008 Ernst           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring.
Carolyn M. Ernst (b. 1979) is a planetary scientist at the Johns Hopkins University Applied Physics Laboratory specializing in impact physics of asteroids and other solar system objects.
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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