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JPL Small-Body Database Browser
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7005 Henninghaack (1981 ET25)
Classification: Main-belt Asteroid          SPK-ID: 2007005
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09954427465106799 3.417e-08  
a 2.419811645872306 9.0983e-09 au
q 2.178933250791741 8.6614e-08 au
i 6.174860953571446 4.2111e-06 deg
node 182.590723252936 3.3994e-05 deg
peri 101.4395587221031 4.2781e-05 deg
M 312.884799094625 2.3504e-05 deg
tp 2458780.440663382966
8.9523e-05 TDB
period 1374.898919522117
n .2618374302927867 1.4767e-09 deg/d
Q 2.660690040952872 1.0004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1769  
   data-arc span      14079 days (38.55 yr)  
   first obs. used      1981-02-12  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48718  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:56:28  

Additional Information
 Earth MOID = 1.1724 au 
 Jupiter MOID = 2.46073 au 
 T_jup = 3.500 
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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 14.3   n/a MPO492833  
diameter diameter 3.161 km 0.741 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 12.914 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.405   0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

7005 Henninghaack           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Henning Haack (b. 1961) is curator of meteorites at the Geological Museum in Copenhagen. His research includes the timing of formation, cooling history and parent body structures of iron meteorites.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

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Alternate Designations
 1981 ET25 = 1990 UT3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Jan-19 13:22 UT
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