Based on those screenshots, you're not anywhere close to the landing pad. The one you are POINTING at is inactive - the one you WANT is likely the next one over to the right and leftward around the interior. You have been given clearance to a SPECIFIC pad. It will be lit up, with the pad number and holographic cradle guides.
I hate to say it, but this screenshot doesn't have your landing pad in it. You may have taken it after your docking clearance expired (bit of a feat, with ten minutes of leeway) The radar shows it is forward and to your right.
Keep trying - you'll get it.