| Institution: | 1. Astronomy Dept., National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, Egypt;2. Kottamia Center of Scientific Excellence for Astronomy and Space Sciences (KCScE), STDF No. 5217;3. Astronomy Dept. and Meteorology, Faculty of Science, Al-Azhar University, Cairo, Egypt;1. Department of Mathematics, Faculty of Physical Sciences, Ahmadu Bello University, Zaria, Nigeria;2. Department of Mathematical Sciences, Faculty of Physical Sciences, Federal University Dutsin-Ma, Katsina State, Nigeria;1. Department of Mathematics, University of Delhi, New Delhi, India;2. Department of Mathematics, Sri Aurobindo College, University of Delhi, Delhi, 110017, India;3. Department of Mathematics, Deshbandhu college, University of Delhi, Delhi, 110019, India;4. Department of Physics, Deshbandhu college, University of Delhi, Delhi, 110019, India;5. Department of Mathematics, ARSD College, University of Delhi, Delhi, 110021, India;6. Center for Fundamental Research in Space Dynamics and Celestial Mechanics (CFRSC), New Delhi, Delhi, 110085, India;7. DBC i4 Centre, Deshbandhu College, University of Delhi, New Delhi, 110019, India;1. Astronomy Department, National Research Institute of Astronomy and Geophysics (NRIAG), 11421 Helwan, Cairo, Egypt;2. Kottamia Center of Scientific Excellence in Astronomy and Space Science (KCScE, STDF, ASRT), Cairo, Egypt |
