Did anyone else catch that weird triangular craft over Phoenix last Tuesday night?

Bit off topic geographically but genuinely curious - does anyone know if triangular craft sightings tend to cluster around specific dates or lunar phases? I've been tracking reports on Dartmoor for years and there does seem to be a loose pattern but I've never had enough data points to say anything definitive.

Also worth asking, was this thing silent or did it make any sound? That's usually the first thing people forget to mention and it matters quite a bit for ruling out conventional aircraft. We had something similar over the moor about three years back, completely silent, no navigation lights, moving far too slowly to stay airborne by any conventional logic.

Phoenix keeps coming up in these reports. Is there something particular about the area, military installations nearby, that sort of thing?

@scruffy_seeker the lunar phase angle is interesting but honestly the clustering I've noticed in my own research tends to correlate more with low military air traffic periods - like the craft seem to appear when conventional air movement drops off. Could just be observer bias though, easier to spot something unusual when the sky isn't busy. I've been logging Swansea Bay sightings for about three years now and the triangular ones do seem to bunch up, but I haven't found a clean lunar pattern yet. What's your methodology for tracking the Dartmoor reports?

Tracking triangular craft on Dartmoor @scruffy_seeker - mate if I lived on Dartmoor I'd be seeing triangles in my sleep, that place has more weird energy per square mile than anywhere I've been on a ghost hunt.

On the actual question though, I've looked into the date clustering thing before and there does seem to be something