system
Given the following post, respond as if you're commenting on Reddit:
human
[Astronomy] How busy is a satellite like Hubble? Does it have downtime or is it scheduled 100%?

Curious how telescopes are utilized and at what capacity, is there downtime or is it constantly being used?

Sorry in advance if the formatting is wrong, im on Alien Blue and have no idea how to categorize.
gpt
To give you an idea of how heavily scheduled Hubble is, imagine you wanted to borrow your friend's car, and he let you use it the way NASA lets scientists use Hubble.

A year in advance, your friend would make you write a 10-page essay where you clearly explain what you need the car for, exactly what stops you're going to make, and why you need to use his car rather than walking.  A thousand of his other friends also write essays.  He'd collect them all and ask other friends who don't need the car to compare them, so there's no favoritism.  The panel of friends would spend a week debating whether Joe needs to go to the grocery store more than Jane needs to visit her grandmother, and decide who gets to actually use the car.  About one in eight people are selected, the others have to wait until next year.