North Eastern Space Application Centre (NESAC), Meghalaya
On2nd May 2023 for B.Tech final year students of Computer Science and Engineering department
Total 47 students along with four faculty members Mr. Arindom Ain, Assistant Professor, Department of Computer Application, Ms. Shrabani Medhi, Assistant Professor, Department of CSE, Ms. Ritushree Dutta, Assistant Professor, Department of CSE, Ms. Mala Ahmed, Assistant Professor, Department of CSEwent to NESAC, situated in between the beautiful valleys of Shillong. NESAC provides operational satellite communication applications services in the region in education, health care, disaster management support, and developmental communication. First of all, the staff of NESAC showed the students how with the help of satellites they could get the exact time with a difference of picosecond and like GPS that is being created by America, India is also having their own navigation IRNSS (Indian Regional Navigation Satellite System). They showed the students various models of satellites like Chandrayaan 2, Astroset etc. launched by ISRO. Secondly they showed the studentsthe way they detect the aerosol of dust that causes immense air pollution. Air pollution is mainly caused by the emission of carbon monoxide by vehicles and the burning of bushes or other particles. NESAC also has devices that can measure the height of clouds. The device can throw a straight beam of light which will continuously go upwards in the sky until it reaches a cloud. Once the light strikes a cloud it will bounce and come back and with the time taken to reach and scatter, they can calculate the height. It moreover measures the size of the droplet of rain. The usual size of a droplet should be between 0.5mm -5mm and if it is not in this range that means the pollution is increasing causing the variation of droplet size leading to heavy rainfall or no rain at all. They also showed the various drones they have self- created with the help of a machine using polypropylene. There were various drones such as hexacopter and many others and cameras having night vision. The drones can fly using their charged electric power or battery. The drone can have their charge upto 6-7 hours and once their charge goes down it automatically switches to its battery mode and emits signals. In a big screen having all the North-Eastern states into view, it showed the ongoing situations like thunder, wind speed and direction, forest fires, landslides, earthquakes and floods in different North-Eastern regions, captured by satellite. They also had the records of previously occurred disasters (even the earthquake occurred 2 days back of 2.9 magnitude in Kamrup region). Lastly they showed their portals like NEDRP (Northern Eastern District Resources Plan), NeSDR (North Eastern Spatial Data Repository), NERDRR (North Eastern Region Node for Risk Reduction) and many more. These portals help us to know the recent earthquake and the place it originated from along with the magnitude.