On 26th December 2019, during morning hours, an annular solar eclipse having a magnitude of 0.96 with 118 km wide antumbra occurred and lasted for 3 minutes 40 seconds at the point maximum eclipse. The partial was visible in most Asia, parts North/East Africa, North/West Australia. In context Nepal, only from ~ 8:34 LT (02:51 UT) ended 11:40 (05:55 UT). It 2 hours 47 mins 54 secs long time 10:0...

In the present work neural network has been developed for prediction of Vertical Total Electron Content (VTEC) over Bhopal (23.2°N, 77.4°E & MLAT 14.2°N), an equatorial anomaly crest region. The study is based on VTEC data recorded by a multi-frequency multi-constellation GNSS receiver installed at during May 2016 to August 2017. Neural Network (NN) consists artificial neurons that are used lea...

Different Faraday Rotation (FR) estimators are discussed, their estimation performances are assessed and compared to each other. The algorithms are applied on a set of quad-pol ALOS Pal-SAR data and the obtained estimates are validated against FR values derived from TEC maps obtained from GPS measurements.