3 points of light in a massive triangle moving together

While sitting in my backyard talking on the phone in the evening staring at the sky and mentioning a random satellite I would see from time to time, I then saw another “ satellite” moving but quickly noticed there were 2 other “satellites” moving with it and all 3 made up a massive triangle shape.
I know the gov and nasa has satellites that are designed to fly “linked” or “tethered” by nothing more than a laser to maintain a specific distance between them (usually a few kilometers) for calculating objects while they scan the surface of earth (or whatever they orbit) however I’ve never heard of 3 satellites using the same method flying in a delta v or a triangle…. The tips of this triangle were not even close to each other but rather so far apart the distance would probably be the size of Massachusetts given how large it was in the sky…. I saw it for about 30 seconds before the 3 points of light just disappeared …. And for hrs I was thinking it was 3 “individual objects” flying synchronized but then it dawned on me what if it was one massive triangle object and these were the 3 points and then I was like holy shit that could be a single massive ship…. Because that correlates with objects that have been described on the west cost since the early 90’s. The points of the triangle were so large… imagine looking up at the night sky and holding a basketball in your outstretched arms and the points were outside that basketball (approximately) … That projected angle is so massive in miles I can’t imagine the size of it based on the altitude it was at.