At approximately 8pm on february 1 in ho chi minh city, vietnam, i happened to look out my window and noticed a flashing red light above and to the right of a skyscraper that is being built. initially i assumed it was part of the construction crane but quickly realized that it was moving away slowly and was much too far from the building to be so. the object moved very smoothly down towards the horizon but stopped just short of disappearing behind the tall buildings across from my place. it was flashing red, white, and occasionally green. about 1 minute into the observation i grabbed my phone and began filming. it ascended once more rather quickly and spent the next 3 minutes sort of floating around before descending out of my line of sight beyond the buildings.