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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052277593471811 3.2585e-08  
a 2.599206783991569 1.159e-08 au
q 2.325698078032143 8.7506e-08 au
i 13.29034532726494 3.7365e-06 deg
node 199.6540115987426 1.4429e-05 deg
peri 210.8316780217573 2.6228e-05 deg
M 246.7539527887346 2.5095e-05 deg
tp 2459481.982188678772
(2021-Sep-24.48218868)
0.00010867 TDB
period 1530.592830326313
4.19
1.0237e-05
2.803e-08
d
yr
n .2352029833585789 1.5731e-09 deg/d
Q 2.872715489950994 1.2809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1827  
   data-arc span      24054 days (65.86 yr)  
   first obs. used      1954-12-22  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48604  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:02:28  

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

[ hide close-approach data ]
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 30 CATAB v2.0f-lin.ifort 2020-Nov-13 03:02:33 2020-Nov-13 03:02
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 30 CATAB v2.0f-lin.ifort 2020-Nov-13 03:02:33 2020-Nov-13 03:02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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