About Me  

Dr. Rajkumar Hajra

 Ramanujan Fellow || Ph.D. || Researcher || Reviewer 

Rajkumar HAJRA
Ramanujan Fellow
Discipline of Astronomy, Astrophysics and Space Engineering (DAASE)
Indian Institute of Technology Indore
Khandwa Road, Simrol, Indore 453552, Madhya Pradesh, India
Ph. No.: +91-731-243-8700 EXT: 3214
Email: rajkumarhajra@yahoo.co.in, rhajra@iiti.ac.in

Research interests

  • Space weather
  • Geomagnetic storms and substorms
  • Earth's radiation belts
  • Solar wind-magnetosphere-ionosphere coupling
  • Ionospheric dynamics and modeling
  • Ionospheric irregularities
  • Cometary plasma dynamics
  • Planetary plasma dynamics

Positions

  • 2019 November 11 - present: Ramanujan Fellow, DAASE, IIT Indore, Indore, India
  • 2018 November 22 - 2019 October 31: Ramanujan Fellow, National Atmospheric Research Laboratory (NARL), Gadanki, Andhra Pradesh, India
  • 2016 March 7 - 2018 October 31: Postdoctoral Fellow, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Centre National de la Recherche Scientifique (CNRS), Orléans, France
  • 2012 August 1 - 2015 September 30: Postdoctoral Fellow, Divisão de Geofísica Espacial (DGE), Instituto Nacional de Pesquisas Espaciais (INPE), São Paulo, Brazil

Education

  • PhD (Tech) in Space Physics, 2012, University of Calcutta, India
  • M.Sc. in Physics, 2005, University of Calcutta, India
  • B.Sc. (Honours) in Physics, 2003, University of Calcutta, India

Awards and achievements

  1. 2019: Travel grant by National Science Foundation (NSF), USA to attend the AGU Chapman Conference on Scientific Challenges Pertaining to Space Weather Forecasting, Pasadena, CA, USA (11 - 15 February 2019)
  2. 2018: Ramanujan Fellowship by Science & Engineering Research Board (SERB), Department of Science & Technology (DST), Government of India, India (22 November 2018 - 21 November 2023)
  3. 2018: Travel grant by National Science Foundation (NSF), USA to attend the AGU Chapman Conference on Particle Dynamics in the Earth's Radiation Belts, Cascais, Portugal (4 - 9 March 2018)
  4. 2017: Postdoctoral Research Fellowship by Centre National d'Etudes Spatials (CNES), France for research activities at Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Centre National de la Recherche Scientifique (CNRS), Orléans, France (1 December 2017 - 31 October 2018)
  5. 2016: Postdoctoral Research Fellowship by Agence Nationale de la Recherche (ANR), France for research activities at Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Centre National de la Recherche Scientifique (CNRS), Orléans, France (7 March 2016 - 30 November 2017)
  6. 2015: Bolsa Estágio de Pesquisa no Exterior (BEPE) by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Brazil for research activities at Jet Propulsion Laboratory (JPL), Pasadena, California, USA (1 June 2015 - 31 March 2016)
  7. 2014: Bolsa Estágio de Pesquisa no Exterior (BEPE) by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Brazil for research activities at Arecibo Observatory/AO, Arecibo, Puerto Rico (1 December 2014 - 31 March 2015)
  8. 2012: Postdoctoral Research Fellowship by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Brazil for research activities at Instituto Nacional de Pesquisas Espaciais/INPE, Brazil (1 August 2012 - 25 January 2015 and 26 March 2015 - 30 September 2015)
  9. 2009: Junior Research Fellowship by Indian Space Research Organization (ISRO), Government of India, India
  10. 2006: Junior Research Fellowship by Indian Space Research Organization (ISRO), India
  11. 2006: Graduate Aptitude Test in Engineering (GATE) Examination, India (2006)

Skills

  • Experience in Mutual Impedance Probe (MIP) instrument theory and data calibration and analysis for Rosetta spacecraft, European Space Agency (ESA).
  • Experience in analyzing cometary plasma and magnetic field data from Rosetta Plasma Consortium (RPC), Rosetta spacecraft, European Space Agency (ESA).
  • Experience in analyzing solar wind/interplanetary data (WIND, ACE, IMP).
  • Experience in analyzing NASA Van Allen Probe data.
  • Experience in operating ICOM wideband receiver IC-R7100 for receiving and analyzing VHF signal.
  • Experience in operating Septentrio PolaRxS receiver for ionospheric monitoring and space weather application (it receives data from GPS, GLONASS, Galileo and SBAS).
  • Experience in deducing and analyzing total electron content (TEC) data by the technique of Faraday rotation of plane polarized VHF signal from geostationary satellite ETS-2.
  • Experience in analyzing scintillation in VHF/UHF signal from satellites ETS-2 and FSC.
  • Experience in scaling and analyzing ionosonde data.
  • Computational skills: Operating systems: Linux, Windows XP/ME/2000/Vista/7/10.
  • Programming languages: Microsoft Office, MatLab, IDL, FORTRAN 77 and 90, R-program.