User:Cassiel Seraphim/Sandbox9

Weapon Accuracy Score

Tracking in EVE is measured by a turret attribute called Weapon Accuracy Score or WAS for short. It is an attribute that unifies the tracking value for all weapons, regardless the size of the weapons (larger weapons have a harder time hitting smaller targets).

Easy to compare relative tracking of weapons

Since tracking is uniformly calculated across different types and sizes, you can easily compare one gun to another. Here's an example:

Type of weapon	Size	WAS

Legacy tracking attributes

While all usable turrets ingame have been changed to present Weapon Accuracy Score, a lot of things like NPCs and drones still use the old legacy term Signature Resolution and Tracking Speed.

Signature Resolution

This is an old attribute that lists the relative signature of the target the weapon is intended to be fired upon. This Signature Resolution is measured the same as the ship attribute Signature Radius:

Signature	Intended target	Examples that use this resolution
400 m	Battleship-class targets	Heavy drones, sentry drones, NPC battleships
125 m	Cruiser-class targets	Medium drones, NPC cruisers
40 m	Frigate-class targets	Light drones, NPC frigates

Tracking Speed

The old Tracking Speed attribute didn't used to take into consideration your Signature Resolution, so a large weapon could have a similar tracking speed value of a smaller gun, making them seem, at first glance, to have equally good tracking. In short it was simply the tracking value in and by itself, not accounting for the size of the gun (its resolution) and how that would lower the practical tracking.

Conversions

If you want to see how well drones or NPCs track, compared to your own weapons, you can reverse-engineer the value like this:

Weapon Accuracy Score = Tracking Speed * 40000 / Signature Resolution

Similarly you can find out the old tracking value from a weapon accuracy score like this:

Tracking Speed = Weapon Accuracy Score / 40000 * Signature Resolution