Sector 45 was a region of space in the Beta Quadrant. A section of the Romulan Neutral Zone was located in Sector 045/34. The Federation was monitoring Romulan operations in 045/3195.
In 2364, the Federation starships USS Tranquillity Base, USS Max Plank, and USS Non Sequitur and the starbase Starbase Trailer Twenty-Nine were ordered by Starfleet Command to increase sensor drone surveillance of this sector. Starbase 245 was ordered to cease monitoring a section of this sector, and turned this task over to the sensor drones. This sector was mentioned in mission orders. (TNG: "Conspiracy", okudagrams)
In the alternate 2259, the Neutral Zone, located in this sector, was being monitored for activity by Starfleet. Results from this intelligence gathering were displayed on a galactic map, with its focus primarily on the Alpha Quadrant, which was in a collection of graphics and video media that were seen on a powerwall in the offices of Admirals Christopher Pike and Alexander Marcus at Starfleet Headquarters. (Star Trek Into Darkness)
This sector was only mentioned in writing.
This sector's quadrant of origin is inferred from it containing a section of the Romulan Neutral Zone. This zone was canonically located in the Beta Quadrant in the Star Trek: Picard episode "The Impossible Box".
The map is visible in the video "Star Trek: Into Darkness" – User Interface VFX at vimeo.com. [1]
