Very similar as the article I linked. This was during the day though so I didn’t see anything trailing. But it was a very visible light. Girlfriend saw it too. Thought it was a Chem trail at first as it was moving in one direction. But quickly realized it was very low and had nothing leading it. Then after watching for about 45 seconds it started making very fast and controlled altitude gains definitely didn’t look like a ballon or any other type of aircraft movements, it did several very precise looking diagonal altitude changes.