Characteristics and sources of electron density irregularities near and after midnight in the equatorial F region

Hyosub Kil1, Andrew Andrew Sun2, Hyeyeon Chang3, Larry J Paxton4, Romina Nikoukar5 and Jiyun Lee2, (1)Johns Hopkins University, Baltimore, MD, United States, (2)KAIST Korea Advanced Institute of Science and Technology, Daejeon, South Korea, (3)Korea Advanced Science and Technology Institute, Daejeon, South Korea, (4)The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (5)Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States