Absolutely right.  I'd be watching guard positions, counting how long it takes them to make their rounds, learning when and where the supply ships dock, any information of possible value.

Realistically if I were there myself I wouldn't see a point in even thinking about escaping for at least a week.  What if the best chance to escape happens only once a month?  After all, if you try and escape there likely won't be a second opportunity if you catch my meaning.