Ulysses' logs

 is a series of six holodisk in the Fallout: New Vegas add-on Lonesome Road.

Transcript
Ulysses Log Y-17:21

Ulysses Log Y-17.16

Locations
Ulysses Log Y-17.21 - Directly south of the Collapsed Overpass Tunnel Entrance. Behind a hard locked gate. Ulysses Log Y-17.16 - In The Crows' Nest, inside the top of the ruined buildings next to a bedroll. NOTE: It is unknown if detonating the warhead at the base of the buildings makes the holotape unreachable.