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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1444257321960895 5.2182e-08  
a 2.792880540874101 1.9574e-08 au
q 2.389516723822148 1.4863e-07 au
i 3.893996713701759 5.8891e-06 deg
node 5.601518381023276 7.8877e-05 deg
peri 227.3531423497959 8.1268e-05 deg
M 96.86748248237188 2.1216e-05 deg
tp 2458541.774926227255
(2019-Feb-27.27492623)
9.8622e-05 TDB
period 1704.813858337248
4.67
1.7922e-05
4.907e-08
d
yr
n .211166748932413 2.2199e-09 deg/d
Q 3.196244357926053 2.2401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      13538 days (37.07 yr)  
   first obs. used      1981-02-09  
   last obs. used      2018-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55073  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:46:29  

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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