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Bessel elements
Programmer: Bill Kramer
Last update: 6 AUG 2014 BK
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Bessel Elements

Data used for eclipse calculations

The following data is used by the calculator when determining local circumstances. If you notice an error or problem with the data, please contact the webmaster of this site to have the corrections applied.
 
Source = NASA/GSFC
Date = 8/21/2017
DeltaT = 68.
T0 = 18
TanF1 = 0.0046222
TanF2 = 0.0045992
X-0.129571
0.5406426
-0.0000294
-0.0000081
Y0.485416
-0.14164
-0.0000905
0.0000020
D11.86696
-0.013622
-0.000002
L10.542093
0.0001241
-0.0000118
L2-0.004025
0.0001234
-0.0000117
Mu89.24543
15.003937
0