tokens: SDO is a mission of NASA’s Living With a Star Program. SOHO is a project of international cooperation between ESA and NASA. This work used the DAVE4VM code written and developed by P. W. Schuck at the Naval Research Laboratory. I thank the referee, Prof. P. Démoulin, and Prof. B. Ravindra for useful comments and suggestions. P.V. is supported by an INSPIRE grant of AORC scheme under the Department of Science and Technology.
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