Butterfly like whistler wave observations from the magnetospheric multiscale (MMS) mission

Krushna Chandra Barik, Indian Institute of Geomagnetism(IIG), UAS, Navi Mumbai, India, Satyavir Singh, Indian Institute of Geomagnetism (IIG), Navi Mumbai, India and Gurbax Singh Lakhina, INDIAN INSTITUTE OF GEOMAGNETISM, UAS, Navi Mumbai, India