Satellites visible from Purnia (25.7771°N, 87.4753°E) tonight, with the IST start time, direction, peak height and brightness of each pass. A pass is listed only when the satellite clears 10°, is sunlit, your sky is dark and it reaches about magnitude 4.5.
Purnia lies in north-east Bihar, about 235 km east of Patna, on the flat plain of the Kosi river system that stretches north towards Nepal. Farmland surrounds it in every direction, giving low horizons with only small towns between the city and the hills.
The Kosi region receives heavy monsoon rain from June to September and floods often. Winter fog is common in December and January, leaving October and November as the clearest months.
Pass times for Bhagalpur, Siliguri.
The ISS is the brightest at magnitude -3 to -4, followed by China's Tiangong station, large Earth-observation satellites, spent rocket bodies and Starlink trains in the days after a launch. GPS and NavIC satellites orbit too high to see with the naked eye.