JGB

I'd love to know what this is. I saw it last night and have just seen it tonight again at 23:23 BST, 30 July 2024, almost directly overhead in Bath, UK, travelling W to E. It definitely has a satellite-like trajectory. Not as bright as the ISS but easily visible as blue in 10x50 bins, even through 3/5 lightly broken cloud cover. I've seen a lot of satellites and this is just different to all I've seen before.