[The basic rule of thumb is that something can be improved 5 pips (+1D+2) corresponding to Easy, Moderate, Difficult, Very Difficult and Heroic difficulties, one pip per attempt. Time increases with each level of improvement.
Keshani can do a couple of things:
Option 1
Sensor Pack
Type: Portable scanning device
Skill: Sensors
Range: 5/15/30 m
Game Notes: Detects presence of comm signals, density, mass, volume, movement, and energy type and intensity. +1 to +1D to Sensors, depending on her roll. It will take her three days days to put that together.
Option 2
She can make you a visor/goggles that gives you +1 to Search and takes her a day. +2 takes her 5 days. +1D takes her 14 days.
<Note: I'm pulling this from memory, so don't quote me on the timings later.>