[1] European Cooperation for Space Standardization, 2010, “Space engineering”, Calculation of radiation and its effects and margin policy handbook, ECSS-E-ST-10-04C. [Online]: Available: http://www.ecss.nl. [2] Longair, Malcolm.S, High energy astrophysics, Cambridge press, (2011). [3]Grieder, P.K.F, Cosmic rays at Earth: Researcher’s reference manual and data book, (2001) [4] Grieder, Peter,” Extensive Air Showers: High Energy Phenomena and Astrophysical Aspects A Tutorial, Reference Manual and Data Book”, Elsevier, (2010). [5] Martin, Brian. R, Shaw, Graham, Particle physics, John wiley & sons, (2017) [6]https://image.gsfc.nasa.gov/poetry/tour/AAvan.html [7] Fowles, Grant. R, Cassiday, George. L, Analytical Mechanics, Thomson Brooks cole, (2005), p176 [8] Symon, Keith.R, Mechanics, University of Wisconsin, 3rd, (1971), p147 [9] Nayfeh, Munir, Brussel, Morton.k, Electricity and Magnetism, University of Illinois at Urbana-Champaign (1985) [10] Griffiths, David.J, Introduction to electrodynamics, Prentice Hall, Upper Saddle River, New Jersey, (1999) [11] European Cooperation for Space Standardization, 2010, “Space engineering”, Calculation of radiation and its effects and margin policy handbook, ECSS-E-HB-10-12A. [Online].Available: http://www.ecss.nl