Didn't see it myself but I'm about four hours north in New Mexico and I've been tracking something similar appearing over the Four Corners region on and off for the past three weeks. Different nights, different times, always that same flat triangle configuration with the dull amber lights at each vertex.
My question for anyone who actually witnessed it - did the craft make any sound at all? And did it appear to be moving at a consistent speed or doing that thing where it just hangs there for a bit then accelerates hard? That behaviour pattern is what separates the genuinely anomalous cases from misidentified military hardware in my experience.
Also curious whether anyone managed to get footage because the Phoenix area reports almost always produce better quality video than what we get out here in the high desert. Too much competing light interference from the instrumentation setups honestly.