Timeline for Prometheus and/or other such ships

[taste_is_sweet]

Hello everyone! I'm hoping you can help me with a bit of canon.

Was the Prometheus built and/or in use before season one of SGA/season eight of SG1? If not, which ship was it? I basically need a ship that was of the same type that would have been in use shortly before the Atlantis expedition left, but I can't remember when those ships were first

Comments

[spyderqueen]

Prometheus was built in season 6 of SG1. And it definitely was in use by season 7 (The episode Grace took place in it)

[taste_is_sweet]

Awesome! And so fast! Thank you!