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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052277619319282 3.6506e-08  
a 2.599206782191092 1.2865e-08 au
q 2.325698069702835 9.5677e-08 au
i 13.29034402990476 4.7114e-06 deg
node 199.6540178957962 1.5428e-05 deg
peri 210.8316488811042 2.7242e-05 deg
M 246.7539728424575 2.5403e-05 deg
tp 2459481.982102917141
(2021-Sep-24.48210292)
0.00010994 TDB
period 1530.592828735945
4.19
1.1364e-05
3.111e-08
d
yr
n .2352029836029674 1.7463e-09 deg/d
Q 2.872715494679349 1.4219e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1539  
   data-arc span      23516 days (64.38 yr)  
   first obs. used      1954-12-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50116  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:52:44  

Additional Information
 Earth MOID = 1.3431 au 
 Jupiter MOID = 2.56096 au 
 T_jup = 3.370 
[ 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 13.6   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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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