Yet ANOTHER single dimmer spark! from out of nowhere

@ approx: 19:44hrs as I were doing not a thing specific to anything, just sitting and ping! up overhead high altitude (above 20,000ft say) from the N -dir- did fly a single dimmer, (in comparison to prior reports) by observation, spark! it flew in a mostly S.E. -dir- veered to starboard (RT) -noticable- and continued on. It started to 'dissolve' IMO which has presented prior to indicate that the craft is preparing to blip! out of sight. This particular craft did not. It flew on a bit further then as they typically do in their subtle nuanced way, demonstrated an intense glow! all at once, very very quickly!! followed by a dimmer yet as subtle glow! muted in appearance fast fade away! and then blip! gone...
Followed up by at approx: 19:50hrs did fly a second single dimmer spark! from the W to overhead from my seated, static position on Terra Firma facing in a usual S.E. -dir-. It flew on its trajectory JRA (Just Rolling Along) in the early dark nighttime sky until out of my observable view. I did not get up off the deck and give visual pursuit... -fin-
* in closing this report I did wish to add a particular 'thing' I've noticed prior during the time these more recent events reported on here that was absent last nite during this event.
And that was a peculiar triangle pattern of stars, up high, not atmospherically high and typically directly above from my static position on Terra Firma, that seemed looming somewhat. Not menacing. Just THERE. Presence...
*in an attempt to sway away from speculation here, there when reporting. FYI