New Song on Release Radar?

I just found out today that my song started playing on Spotify's release radar with ~100 listens which for me is wild. However, I released my song a week ago and I didn't do any pitching because I didn't think anyone would listen to be honest.

Does anyone know how long a song is eligible to make the radar, I would have assumed it was only for the first week?

New to all this so any info is greatly appreciated.