Aegis 67 flyby identification

A plane identified as AEGIS67 on ADSB flew over my home in Canonsburg PA at 11:37 pm today 8/18/17. Has anyone seen this before? It was low, slow and loud and sounded like military prop but I never saw it, only heard it from bed. I got the altitude off my ADSB receiver as 4000 but forgot to note the air speed.

From what I could find : C130-J