The Satellite Observer app computes and visualizes the position and orbit of satellites, space stations, or other orbital objects, and predicts Iridium flares.

It provides real time tracking of over 1700 satellites and computes the range, azimuth, elevation, position, velocity, apparent brightness, etc. of each satellite. Several views are provided to show satellites in your line of sight. Views include a sky view, a radar display, the constellation of satellites from a deep space viewing point, an individual satellite's path on a map, and upcoming passes over your location. The Action Center shows a summary of future satellite passes and Iridium flares, as well as scheduled reminders for future events. Addition information is provided for many objects, such as dimensions, mass, owner, launch site, mission, and amateur radio data.

Features:
+ Computes and displays the position and orbit of satellites, space stations, and other orbital objects
+ Shows satellites in your viewing direction
+ Sky view with position of satellites
+ Radar display
+ Deep space view with satellite constellation
+ Path of a satellite on a map of the world
+ Passes of a single satellite or of groups of satellites (e.g. passes of ISS or of all Iridium satellites)
+ Action Center with notifications
+ Additional information to many satellites like dimensions, mass, owner, launch site, mission, as well as uplink and downlink frequencies for amateur radio
+ Prediction of Iridium flares
+ Shows flare locations with water-level style indicators to help you find them in the sky
+ Calculations compensate for clock deviation
+ Reminder for Iridium flares and passes
+ Search and highlight function for satellites
+ Night mode
+ Live tiles