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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .105227763877409 3.2795e-08  
a 2.599206785324879 1.1641e-08 au
q 2.325698067450154 8.7932e-08 au
i 13.2903449570198 3.7878e-06 deg
node 199.6540111684413 1.444e-05 deg
peri 210.8316782605798 2.6236e-05 deg
M 246.7539523532277 2.5099e-05 deg
tp 2459481.982190900871
(2021-Sep-24.48219090)
0.00010868 TDB
period 1530.592831504031
4.19
1.0283e-05
2.815e-08
d
yr
n .2352029831776014 1.5801e-09 deg/d
Q 2.872715503199605 1.2866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1758  
   data-arc span      23963 days (65.61 yr)  
   first obs. used      1954-12-22  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:21:18  

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1954-May-22 16:23 < 00:01 Amphi 0.0463356272220741 0.0463348957693483 0.0463363589911721 6.5943401694887 6.59434015067446 2434885.182430127 0.880337724051072 366.227623419822 31.0708409580475 86.9985370664677 222745.007846026 T 29 CATAB v2.0f-lin.ifort 2020-Aug-25 00:21:32 2020-Aug-25 00:21
2042-Feb-21 22:55 < 00:01 Thisb 0.0316301293801767 0.031625800292247 0.0316344584849614 5.72368529551461 5.72368525785308 2466937.454641438 0.320919038434814 218.939012277687 34.7056001364789 -9.81803008997779 31517.1756396569 T 29 CATAB v2.0f-lin.ifort 2020-Aug-25 00:21:32 2020-Aug-25 00:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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