GPS Time for Small Unmanned Aerial Systems by Andrew Brahim Part 1: https://dirksavage88.medium.com/gps-time-for-small-unmanned-aerial-systems-a-primer-for-better-drone-technology-part-one-52d91a908323 Part 2: https://dirksavage88.medium.com/gps-time-for-small-unmanned-aerial-systems-pps-beginnings-part-two-f1a45d0882e1