From Destinypedia, the Destiny wiki
A Scout Report was a consumable item sold by Cayde-6 in Destiny in exchange for 1250 Glimmer. When used, they would highlight nearby Loot Caches on a specific planet, and last for 4 hours. Cayde's inventory would change each week with new Reports for new destinations. With update 2.0, Cayde and his inventory was removed from the Tower and Scout Reports can no longer be obtained.
List of appearances