one-way light time, OWLT(noun)
the elapsed time it takes for light (or radio signals) to travel between the Earth and a celestial object
Spacecraft Event Time (SCET) is the spacecraft-local time for events that happen at the spacecraft. SCET is used for command programs that control the timing of spacecraft operations and to identify when specific events occur on the spacecraft relative to Earth time.
Sorry, "owlt" does not appear to be an English word or a recognized terminology in any specific field. It could be a typo. Please provide additional context or check the spelling.
The numerical value of owlt in Chaldean Numerology is: 2
The numerical value of owlt in Pythagorean Numerology is: 7