Light descended toward steep mountains then blinked out. Later, same one, or different, went horizontally and blinked out.

A few weeks ago, I reported sighting what was either one (1) object glowing with many lights forming a wide V-shape - or - perhaps as many as twenty (20) bright objects glowing while forming a wide V-shape, high over the city of Oaxaca, Mexico. Cannot imagine migratory birds glowing bright at a high altitude and then blinking out. That event inspired me to keep watching the night sky when it is reasonably clear. Last night was perfectly clear.
8:00 PM: All of the moon was fully visible in an opaque way with a quarter of it shining brightly.
8:15 PM: I was looking at the northern sky where three stars form a triangle, or, pyramid-shape (when one connects the dots);
* I noted what appeared to be a tiny star which appeared to be quite close to one of the two lower stars, but noticed it was moving slowly,
the way a small plane would;
* I considered it might be a satellite until it started going downward at a 60-degree angle, as though it were landing in the mountains;
* The extreme altitude of the object, combined with the expansive and steep and thus uninhabitable mountains it was over (which define the
northern limit of Oaxaca-City) surely could not be used for drug production/trafficking, so unlikely it was a police, govt, or private drone;
8:30 PM: In the same area over the mountains, I spotted a similar object (or the same object) at a high altitude, moving slowly. After about 20
seconds it instantly vanished; No trails, or tracking lights; No changing color; Only dull white light. Seemed to be very high up.
Rhetorical Questions: Do satellites shine and then blink out?
* I'm aware of what conventional aircraft look like as they approach the local airport;
* Venus was shining big and bright as usual;
* These objects seem to defy all the behavior of commercial craft, satellites, and drones.
* Not sure if I mentioned that about two weeks ago, I watched an object over the same mountains on the north side of Oaxaca-City that
moved slowly, stopped at went back the way it came, without swerving. It went back the way it came the way a car can simply stop and
be put into reverse without turning. A few moments later, a commercial aircraft w/ ice-trail, heading west, flew 3,000 ft. under object.
* Cheap, Samsung AO2s Phone cannot photograph, or make video of something so far away in the night sky.
A Jet Flying Very Low Toward Airport Turns Off All LIghts?
RE: Aerial objects that might blink out:
It is only fair to mention that one night about two weeks ago, a small aircraft (either military, or commercial) was heading in the direction of the airport
and almost over my apartment; About 2,000 meters before getting over my apartment, the vehicle turned off all it's lights. As it flew over, I could see
it as a shadow and hear the jet-engines roaring. It is fair to conclude, Mexico's version of an FAA may be quite lax if such pilot behavior is tolerated.