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79100 (1981 EH30)
Classification: Main-belt Asteroid          SPK-ID: 2079100
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1394941843298458 4.8558e-08  
a 3.194165977786498 2.3632e-08 au
q 2.748598400101026 1.5316e-07 au
i 8.503252261925741 5.5733e-06 deg
node 175.6261320285332 2.9462e-05 deg
peri 345.5733246586332 3.4969e-05 deg
M 36.13604649691099 1.6504e-05 deg
tp 2459187.198287476476
(2020-Dec-03.69828748)
9.5645e-05 TDB
period 2085.137246956707
5.71
2.314e-05
6.335e-08
d
yr
n .1726505056323875 1.916e-09 deg/d
Q 3.63973355547197 2.6928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      14706 days (40.26 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55153  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:07:45  

Additional Information
 Earth MOID = 1.75846 au 
 Jupiter MOID = 1.34458 au 
 T_jup = 3.164 
[ 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 15.23   n/a MPO637103  
diameter diameter 4.729 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79100 (1981 EH30)          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 EH30 = 1998 FP144 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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