

Hello, I used the app yesterday and found that it was inaccurate in tracking ISS. I just compared it with dtrac, and at the same time, for the same satellite and the same phone screenshot, both apps showed different azimuth and elevation angles. As shown in the image, the app showed an azimuth of 16.8° and an elevation of 50.3°, while dtrac showed an azimuth of 347° and an elevation of 52.1°. Which one is more accurate?