Nightglow observations of OI 630 nm emission during the beginning of solar cycle 24 over 25°N, India

Abstract

This paper presents the first nightglow observations of the thermospheric red line emission of atomic oxygen at 630 nm from Allahabad (25.4°N, 81.9°E), a low-latitude station in India, during October-November 2009 and 2010. These observations were made using a CCD based All-Sky Imaging system. Most of the observations presented here represent geomagnetically quiet nights. The variability of OI 630 nm emission as observed from this station has been presented and discussed.