Why would they bother to follow a normal boring passenger jet on a normal boring commercial route? There’s hundreds of them in the air around the world at any minute, if our spy satellites were following them around we wouldn’t have any left to look at important things like Russian missile silos and troop movements. You might believe it, but the facts and logic say there isn’t a record, anywhere. It doesn’t track.
Apparently, that wasn’t a normal boring route; it was way off course and erratic, so perhaps it was followed for that reason. I don’t know, but I’ll stay with a gut hunch it was tracked. With hundreds/thousands of satellites, who knows what they track.