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79110 (1981 EH40)
Classification: Main-belt Asteroid          SPK-ID: 2079110
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1444257078322874 5.0436e-08  
a 2.792880541993875 1.8828e-08 au
q 2.389516792825388 1.4283e-07 au
i 3.894001517290226 5.8781e-06 deg
node 5.601434827731152 7.5861e-05 deg
peri 227.353211756142 7.8312e-05 deg
M 96.86750322943487 2.1159e-05 deg
tp 2458541.774827701706
(2019-Feb-27.27482770)
9.8355e-05 TDB
period 1704.813859362537
4.67
1.7239e-05
4.72e-08
d
yr
n .2111667488054156 2.1353e-09 deg/d
Q 3.196244291162364 2.1547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      14469 days (39.61 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55736  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:00:18  

Additional Information
 Earth MOID = 1.38087 au 
 Jupiter MOID = 1.8119 au 
 T_jup = 3.310 
[ 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 15.4   n/a MPO436334  
diameter diameter 4.252 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79110 (1981 EH40)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1981 EH40 = 2000 HS24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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