# 3 - Flying a Mission with Astro

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Once you select the Fly option from the mission planning screen, Site Scan will go through a series of checks to make sure that the aircraft is ready to take off.&#x20;

<figure><img src="/files/8rRGObciLy8IBh7pybMu" alt=""><figcaption></figcaption></figure>

Once these checks are finished, Site Scan will prompt you once again to check your takeoff point and give the aircraft permission to start the mission.&#x20;

Now that the aircraft is flying, you will have telemetry along the top of the screen. From left to right, the telemetry is as follows: Distance from the home point, altitude, charge of batteries, and satellites in range. \
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You can switch between a variety of views while the mission is in progress.&#x20;

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