The web application described here has been designed for evaluating the orbit of a remote sensing (RS) satellite and for planning the survey of the specified area on the Earth's surface. It is essential for RS to select an appropriate satellite, taking into account such criteria as optical characteristics and frequency of surveys. The developed program offers a user-friendly interface and efficient calculation of the satellite position. Using this application, the customer will be able to see the trajectory of any available commercial ERS spacecraft for a specified time interval, estimate all the possibilities that meet the customer's requirements for shooting a point or a polygon on the Earth's surface and schedule a survey of the area of interest taking into account all the required limitations. The algorithm is based on the SGP4 model, which uses public TLE data for Earth remote sensing satellites, formulas of celestial mechanics, analytical geometry, and heuristic methods for reducing computations. The program code is written in JavaScript and PHP programming languages with using the Bootstrap, JQuery, and Ce-siumjs libraries. The article contains screenshots of the program itself and the results of speed tests of calculations performance are presented in the article. © 2020, Univelt Inc. All rights reserved.