What is over you, right now.
Every catalogued satellite above your horizon, placed by its real direction and height. Hold a phone up to the sky to see them where they are, or read the chart: the centre is straight up, the rim is the horizon.
Where are you standing?
The sky view needs a rounded location to work out what is above you.
Your position is rounded to an area of about 10 km in your browser. Only that rounded area is stored or sent.