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11408 Zahradnik (1999 EG3)
Classification: Main-belt Asteroid          SPK-ID: 2011408
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1334213488463761 3.0774e-08  
a 3.17361195909055 1.5505e-08 au
q 2.750184370793699 1.0095e-07 au
i .782564945851676 3.2957e-06 deg
node 226.474926246924 0.00027116 deg
peri 17.86331722965727 0.00027151 deg
M 294.8204371342981 1.5241e-05 deg
tp 2459770.385054841220
(2022-Jul-09.88505484)
8.8306e-05 TDB
period 2065.043302302759
5.65
1.5134e-05
4.143e-08
d
yr
n .1743304847886526 1.2776e-09 deg/d
Q 3.597039547387401 1.7574e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2526  
   data-arc span      15612 days (42.74 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47643  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:42:00  

Additional Information
 Earth MOID = 1.73729 au 
 Jupiter MOID = 1.42089 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457099.5 (2015-Mar-18.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363443485103625 3.0676e-08  
q 2.741802275646033 1.0127e-07 au
tp 2457701.672415423081
(2016-Nov-09.17241542)
8.2417e-05 TDB
node 227.0174017618838 0.00027255 deg
peri 16.78251812274371 0.00027289 deg
i .7798664793284213 3.2892e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2526  
   data-arc span      15612 days (42.74 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47643  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:42:00  

Additional Information
 Jupiter MOID = 1.42089 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.41008809335314E-16 -3.080250449638113E-15 -4.144668999502669E-13 -9.352772949664774E-15 -2.758284381766178E-14 -7.293596325496957E-17
q -3.080250449638113E-15 1.025534484509598E-14 1.549339621322287E-12 3.798843400017211E-14 1.06726483440422E-13 1.231429697022853E-16
tp -4.144668999502669E-13 1.549339621322287E-12 6.792568133147687E-9 1.500433101242441E-11 1.135282655694511E-9 3.370974531385915E-13
node -9.352772949664774E-15 3.798843400017211E-14 1.500433101242441E-11 7.428424126879118E-8 -7.427498546352526E-8 -1.091104212961322E-10
peri -2.758284381766178E-14 1.06726483440422E-13 1.135282655694511E-9 -7.427498546352526E-8 7.446845404602673E-8 1.091506596566685E-10
i -7.293596325496957E-17 1.231429697022853E-16 3.370974531385915E-13 -1.091104212961322E-10 1.091506596566685E-10 1.081858241657777E-11

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 13.22   n/a E2021B10  
diameter diameter 10.712 km 0.191 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11408 Zahradník           Discovered 1999 Mar. 13 by L. Šarounová at Ondřejov.
Rudolf Zahradník (b. 1928), co-founder of the Czech school of quantum chemistry, became the founding father and the first president of the Learned Society of the Czech Republic (1994-1997) and the first president of the Academy of Sciences of the Czech Republic (1993-2001).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080321/MPCPages.arcLast Updated: 2008-03-26

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Alternate Designations
 1999 EG3 = 1978 RZ7 = 1997 YM20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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