What exercise level am i at?

For the past week, i've been agonising over my exercise level because i only just joined the gym 3wks ago. I go to the gym 4-5 times per week, only use the elliptical for 35mins and my heart rate is usually between between 75%-83% (145-160bpm). Should i consider this lightly active or moderate active? I have a desk top, try to move around but i just equate it to sedentary. I am using Scooby calculator and just not sure whether i need to be going for lightly active or moderate.