10 satellites are presented for the Firefox and Chrome browsers and 5 satellites for Internet Explorer.

In the upper right corner is the date of the possible fall of the satellite and its current altitude.

Clicking on each satellite is possible to trace the path that the object should do about the Earth's surface.

At the bottom of the right panel we have information about the AOS (aquisition of Signal) for selected satellite and let you know when the object is above the horizon or if visual contact is possible.

The expected date of re-entry is an estimate based on the current solar flux is generated by a mathematical model of satellite decay developed by Apolo11-Satview. This information may change as the day of reentry approaches and data about the conditions of the upper atmosphere to be more accurate.

Important
Make sure that the computer clock is correct and the time zone is compatible with your Region. On the Internet there are dozens of programs that keep your computer always on time.


Visibility conditions

For a satellite can be observed directly, it is necessary that the sunshine reaches its structure and is reflected into our eyes. For that to take place, it is necessary that the following factors are present at the same time:

1 - Dark sky: it should be night on the observation location
2 - The Sun's height: the solar disk should be between 10 and 25 degrees below the line of the horizon
3 - Illuminated satellite: the sun rays should be reaching the satellite directly
4 - The elevation angle: the satellite should be at least 25 degrees above the horizon

When these four conditions are achieved, we say that the satellite will be potentially visible during its passage over our station. Meaning that technically, it can be seen, nevertheless other factors can influence its observation, among them the satellite's altitude and size, its coating material and the atmospheric conditions of the local observation.

As a general rule, the closer the satellite passes over our station, the better the observation will be. That closer approach is directly related to the height of the satellite above the horizon line. The angle formed between the satellite and this line is called the elevation angle and the bigger this angle is, the closer to us the satellite will be. The apex of that approach takes place when the satellite is exactly over the zenith, in other words, 90 degrees above the horizon, but not all the passages effectively reach that position.