1. Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, Kerala, India
2. Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80303, USA
3. Department of Chemistry, University of Colorado, Boulder, Colorado 80309, USA
4. Institute for Modeling Plasma,Atmospheres and Cosmic Dust (IMPACT), NASA/SSERVI, Boulder, Colorado 80309, USA
5. CNR-Istituto di Struttura della Materia, Area della Ricerca di Roma 1, Monterotondo, Roma 00015, Italy
6. Elettra-Sincrotrone Trieste, Strada Statale 14-km 163, 5 in AREA Science Park, Basovizza, TS 34149, Italy