Good picture, but at least part of that length is yet-to-be-inflated balloon. I'm guessing that the thicker section is the canopy of the descent parachute, so everything above that is likely part of the balloon. Assuming it is, and the balloon inflates to a sphere with the top at the same height, it looks like the telescope can point about 60° above the horizon.
https://ras.ac.uk/news-and-press/news/superbit-low-cost-ball...
So even if it can't look directly up 90°, it can probably get up to 85° vertical, so it's totally fine.