SDR (Software Defined Radio) Based Portable Satellite Tracking Device(PSTD). It is a research-based project based on satellite tracking and thereby creating a network of satellite ground stations which is purely focused on observing and tracking of satellite signals. The deployed ground stations can either create a global network and can automatically schedule and accomplish a target satellite. The obtained data is hosted on a web server. When completed it becomes India’s first active SDR Based Portable Satellite Tracking Device which provide the data to SATNOG community. The SDR Based Portable Satellite Tracking Device client area (which has a raspberry pi or Linux pc) and signal reception region which consist of commercial rotator or satellite DIY rotator which is used for controlling antennae rotation. The signal reception region consists of SDR region and signal amplification unit. The antennae may be stationary/omnidirectional and directional. The main advantages are it focuses on receiving LEO satellite signals, US’s NOAA, the hardware, and software are open sources, SDR enabled RF front end for maximum flexibility, data from the deploying ground station are uploaded on cloud for easy access, web support for observation scheduling on ground station with LOS with the target.