First and foremost you must accept the mission. If you dont and just Transwarp to the location and pick up your suit you may not be able to mine. To accept the mission click your FED or KDF icon near mini map. To begin with you will be on the "Overview" tab that displays events where you can accept the mission from the events calendar or click "Available" tab at the top find the mission "Asteroid Mining" and accept.
Second the asteroid field is in the Beta Ursae sector not in the Bajor system. You can find it on the Beta Ursae sector map to the lower left of DS9. Once at the asteroid base get your suit (if you didnt get one from the Dominion Series) from the ferengi.Make sure to equip it either by Double Click or by slotting in your armour slot. Then you will have new options in your powers tray one of which is a suit. Click it.
Third go to a door and look in the middle right of the screen for the "exit airlock" once outside look at your mini map you should have 5 (Cpt Picard. There are four lights he he he) dotted circles. Find purple crystals in these areas and a mine button will appear.
Finally mining itself. The mini game shows a dilithium vein (pink stream) in rock with a red triangle over it. There is a pinkish triangle that you must match to the outer edge of the red triangle. (using left, right, up and down keys) When you do this 3 lasers will appear in the red triangle. This indicates you are mining. At the top left of the mini game a little progress bar will start to fill and you will get points. The triangle will move location though and you have to reaquire your lock.
You can practise this using the console inside the airlock near the dilithium crystals
You dont get a laser in your inventory or at all its in built to the EVA suit
It was my best practise to mine in only one location in each circle
The amount of points you get when drilling is related to your overall score so...
0-25 points = +5 points at a time
25-150 points = +15 points at a time
150-250 points = +20 points at a time
250-400 points = +25 points at a time
400-500 points = +30 points at a time
500-700 points = +35 points at a time
700+ = +40 points at a time.
There may be more but i didn't get any higher and this is only a rough guide from when i was mining may not be exact
I did this and managed to mine perfectly with no bugs, or anything. This is for those unsure on mining.
This is a social map so when not mining you can come jump around or walk the grand asteroid canyon
To those who got the 4/5 and cant mine... I feel for you peeps
More than once I would scan a node and get absolutely nothing nor count for the 5 node total (once with an 815 score) but the node would stay active. One node I scanned 3 times in a row before it counted.