Reminds me of that retard who is always popping in here to demand an apology…
They're apparently military-funded test platforms operated by MIT. Two of them have been there for months under callsigns B270E01 & B270E02, but a third one showed up in the last few weeks under the much more interesting callsign ELW01.
A google search of "ELW01" returns a Dungeons & Dragons Adventure called "Murder in Skyway."
https://www.dmsguild.com/product/252925/DDALELW01-Murder-in-Skyway
It's in the pic…
Better late than never, friend.